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Light-induced structures in attosecond transient-absorption spectroscopy of molecules (2015)

Jens E. Bækhøj and Lars Bojer Madsen

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Jens E. Bækhøj and Lars Bojer Madsen The nature of light-induced structures in attosecond transient-absorption spectroscopy of molecular systems is investigated theoretically. It is shown how nuclear dynamics affect these structures. We find that a theoretical three-surface model captures the main characteristics in the calculated spec… [Phys. Rev. A 92, 023407] Published Mon Aug 10, 2015

Schlagwort(e): Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

Print ISSN: 1050-2947

Digitale ISSN: 1094-1622

Thema: Physik

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Scaling laws for high-order-harmonic generation with midinfrared laser pulses (2015)

M. V. Frolov, N. L. Manakov, Wei-Hao Xiong, Liang-You Peng, J. Burgdörfer, and Anthony F. Starace

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): M. V. Frolov, N. L. Manakov, Wei-Hao Xiong, Liang-You Peng, J. Burgdörfer, and Anthony F. Starace We derive an analytic expression for the wavelength scaling of the high-order-harmonic generation (HHG) yield induced by midinfrared driving laser fields. It is based on a quasiclassical description of the returning electron wave packet, which is shown to be largely independent of atomic properties.… [Phys. Rev. A 92, 023409] Published Mon Aug 10, 2015

Schlagwort(e): Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

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Thema: Physik

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Extracting an electron's angle of return from shifted interference patterns in macroscopic high-order-harmonic spectra of diatomic molecules (2015)

T. Das, B. B. Augstein, C. Figueira de Morisson Faria, L. E. Chipperfield, D. J. Hoffmann, and J. P. Marangos

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): T. Das, B. B. Augstein, C. Figueira de Morisson Faria, L. E. Chipperfield, D. J. Hoffmann, and J. P. Marangos We investigate high-order-harmonic spectra from aligned diatomic molecules in intense driving fields whose components have orthogonal polarizations. We focus on how the driving-field ellipticity influences structural interference patterns in a macroscopic medium. In a previous publication [ Phys. Rev… [Phys. Rev. A 92, 023406] Published Mon Aug 10, 2015

Schlagwort(e): Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

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Thema: Physik

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Dynamical quantum phase transitions in the Kitaev honeycomb model (2015)

Markus Schmitt and Stefan Kehrein

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Markus Schmitt and Stefan Kehrein The notion of a dynamical quantum phase transition (DQPT) was recently introduced [Heyl et al. , Phys. Rev. Lett. 110 , 135704 (2013) ] as the nonanalytic behavior of the Loschmidt echo at critical times in the thermodynamic limit. In this work the quench dynamics in the ground state sector of the two… [Phys. Rev. B 92, 075114] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

Print ISSN: 1098-0121

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Thema: Physik

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Creating and manipulating non-Abelian anyons in cold atom systems using auxiliary bosons (2015)

Yuhe Zhang, G. J. Sreejith, and J. K. Jain

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Yuhe Zhang, G. J. Sreejith, and J. K. Jain The possibility of realizing bosonic fractional quantum Hall effect in ultracold atomic systems suggests a new route to producing and manipulating anyons, by introducing auxiliary bosons of a different species that capture quasiholes and thus inherit their nontrivial braiding properties. States with… [Phys. Rev. B 92, 075116] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Origin of strong dispersion in Hubbard insulators (2015)

Y. Wang, K. Wohlfeld, B. Moritz, C. J. Jia, M. van Veenendaal, K. Wu, C.-C. Chen, and T. P. Devereaux

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Y. Wang, K. Wohlfeld, B. Moritz, C. J. Jia, M. van Veenendaal, K. Wu, C.-C. Chen, and T. P. Devereaux Using cluster perturbation theory, we explain the origin of the strongly dispersive feature found at high binding energy in the spectral function of the Hubbard model. By comparing the Hubbard and t − J − 3 s model spectra, we show that this dispersion does not originate from either coupling to spin fluc… [Phys. Rev. B 92, 075119] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Logarithmic temperature dependence of samarium ion valence in the heavy-fermion Sm_{x} La_{1−x} Os_{4} Sb_{12} (2015)

Kengo Fushiya, Ryoichi Miyazaki, Ryuji Higashinaka, Akira Yamada, Masaichiro Mizumaki, Satoshi Tsutsui, Kiyofumi Nitta, Tomoya Uruga, Bunya Suemitsu, Hideyuki Sato, and Yuji Aoki

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Kengo Fushiya, Ryoichi Miyazaki, Ryuji Higashinaka, Akira Yamada, Masaichiro Mizumaki, Satoshi Tsutsui, Kiyofumi Nitta, Tomoya Uruga, Bunya Suemitsu, Hideyuki Sato, and Yuji Aoki We have measured x-ray absorption spectra at the Sm L 3 edge to investigate the Sm-ion valence of ( S m x L a 1 − x ) O s 4 S b 12 , in which field-insensitive heavy-fermion behavior appears at low temperatures for x = 1 . It has been found that the Sm-ion valance shifts to 2 + with La ion substitution; from v = + 2.78 ( x = 1 ) … [Phys. Rev. B 92, 075118] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Lifshitz transition and Van Hove singularity in a three-dimensional topological Dirac semimetal (2015)

Su-Yang Xu, Chang Liu, I. Belopolski, S. K. Kushwaha, R. Sankar, J. W. Krizan, T.-R. Chang, C. M. Polley, J. Adell, T. Balasubramanian, K. Miyamoto, N. Alidoust, Guang Bian, M. Neupane, H.-T. Jeng, C.-Y. Huang, W.-F. Tsai, T. Okuda, A. Bansil, F. C. Chou, R. J. Cava, H. Lin, and M. Z. Hasan

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Su-Yang Xu, Chang Liu, I. Belopolski, S. K. Kushwaha, R. Sankar, J. W. Krizan, T.-R. Chang, C. M. Polley, J. Adell, T. Balasubramanian, K. Miyamoto, N. Alidoust, Guang Bian, M. Neupane, H.-T. Jeng, C.-Y. Huang, W.-F. Tsai, T. Okuda, A. Bansil, F. C. Chou, R. J. Cava, H. Lin, and M. Z. Hasan A three-dimensional (3D) Dirac semimetal is a novel state of quantum matter which has recently attracted much attention as an apparent 3D version of graphene. In this paper, we report results on the electronic structure of the 3D Dirac semimetal Na 3 Bi at a surface that reveals its nontrivial ground … [Phys. Rev. B 92, 075115] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Fermi-liquid theory for the single-impurity Anderson model (2015)

Christophe Mora, Cătălin Paşcu Moca, Jan von Delft, and Gergely Zaránd

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Christophe Mora, Cătălin Paşcu Moca, Jan von Delft, and Gergely Zaránd We generalize Nozières' Fermi-liquid theory for the low-energy behavior of the Kondo model to that of the single-impurity Anderson model. In addition to the electrons' phase shift at the Fermi energy, the low-energy Fermi-liquid theory is characterized by four Fermi-liquid parameters: the two given … [Phys. Rev. B 92, 075120] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Resolving CuO chain and CuO_{2} plane contributions to the YBa_{2} Cu_{3} O_{7−δ} valence band by standing-wave excited hard x-ray photoelectron spectroscopy (2015)

S. Thiess, T.-L. Lee, C. Aruta, C. T. Lin, F. Venturini, N. B. Brookes, B. C. C. Cowie, and J. Zegenhagen

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): S. Thiess, T.-L. Lee, C. Aruta, C. T. Lin, F. Venturini, N. B. Brookes, B. C. C. Cowie, and J. Zegenhagen We analyzed the valence band (VB) of the 90 K high-temperature superconductor YBa 2 Cu 3 O 7 − δ by photoelectron spectroscopy under standing-wave excitation employing hard x rays. Precisely positioning the standing-wave intensity in the unit cell allows selectively probing the VB yield from the CuO chains… [Phys. Rev. B 92, 075117] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Resonant inelastic x-ray scattering on single magnons at oxygen K edges (2015)

Beom Hyun Kim and Jeroen van den Brink

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Beom Hyun Kim and Jeroen van den Brink The recent discovery that resonant inelastic x-ray scattering can probe single-magnon (SM) dispersions in transition metal (TM) oxides when the x-ray energy is tuned to the TM L edge has put this technique on a par with inelastic neutron scattering. It is generally presumed that selection rules forb… [Phys. Rev. B 92, 081105(R)] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Ultralong-range order in the Fermi-Hubbard model with long-range interactions (2015)

Erik G. C. P. van Loon, Mikhail I. Katsnelson, and Mikhail Lemeshko

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Erik G. C. P. van Loon, Mikhail I. Katsnelson, and Mikhail Lemeshko We use the dual boson approach to reveal the phase diagram of the Fermi-Hubbard model with long-range dipole-dipole interactions. By using a large-scale finite-temperature calculation on a 64 × 64 square lattice we demonstrate the existence of a novel phase, possessing an “ultralong-range” order. The … [Phys. Rev. B 92, 081106(R)] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Quantized topological magnetoelectric effect of the zero-plateau quantum anomalous Hall state (2015)

Jing Wang, Biao Lian, Xiao-Liang Qi, and Shou-Cheng Zhang

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Jing Wang, Biao Lian, Xiao-Liang Qi, and Shou-Cheng Zhang Motivated by the possibility of experimental detection of the topological magnetoelectric effect the authors put forth a theoretical proposal for its realization in the zero plateau quantum anomalous Hall state of a ferromagnet-topological insulator heterostructure. [Phys. Rev. B 92, 081107(R)] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Characterization of topological phase transitions via topological properties of transition points (2015)

Linhu Li and Shu Chen

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Linhu Li and Shu Chen We study topological properties of phase transition points of topological quantum phase transitions by assigning a topological invariant defined on a closed circle or surface surrounding the phase transition point in the parameter space of momentum and transition driving parameter. By applying our s… [Phys. Rev. B 92, 085118] Published Mon Aug 10, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Probing local equilibrium in nonequilibrium fluids (2015)

J. J. del Pozo, P. L. Garrido, and P. I. Hurtado

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): J. J. del Pozo, P. L. Garrido, and P. I. Hurtado We use extensive computer simulations to probe local thermodynamic equilibrium (LTE) in a quintessential model fluid, the two-dimensional hard-disks system. We show that macroscopic LTE is a property much stronger than previously anticipated, even in the presence of important finite-size effects, re… [Phys. Rev. E 92, 022117] Published Mon Aug 10, 2015

Schlagwort(e): Statistical Physics

Print ISSN: 1539-3755

Digitale ISSN: 1550-2376

Thema: Physik

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16

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Annealed and quenched disorder in sand-pile models with local violation of conservation (2015)

Saman Moghimi-Araghi and Mahmoud Sebtosheikh

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Saman Moghimi-Araghi and Mahmoud Sebtosheikh In this paper we consider the Bak, Tang, and Wiesenfeld (BTW) sand-pile model with local violation of conservation through annealed and quenched disorder. We have observed that the probability distribution functions of avalanches have two distinct exponents, one of which is associated with the usual… [Phys. Rev. E 92, 022116] Published Mon Aug 10, 2015

Schlagwort(e): Statistical Physics

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17

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Kondo physics in a Ni impurity embedded in O-doped Au chains (2015)

S. Di Napoli, M. A. Barral, P. Roura-Bas, L. O. Manuel, A. M. Llois, and A. A. Aligia

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-13

Beschreibung: Author(s): S. Di Napoli, M. A. Barral, P. Roura-Bas, L. O. Manuel, A. M. Llois, and A. A. Aligia By means of ab initio calculations we study the effect of O doping of Au chains containing a nanocontact represented by a Ni atom as a magnetic impurity. In contrast to pure Au chains, we find that with a minimum O doping the 5 d x z , y z states of Au are pushed up, crossing the Fermi level. We also find… [Phys. Rev. B 92, 085120] Published Wed Aug 12, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Instanton theory for bosons in a disordered speckle potential (2015)

G. M. Falco and Andrei A. Fedorenko

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-13

Beschreibung: Author(s): G. M. Falco and Andrei A. Fedorenko We study the tail of the spectrum for noninteracting bosons in a blue-detuned random speckle potential. Using an instanton approach, we derive the asymptotic behavior of the density of states in d dimensions. The leading corrections resulting from fluctuations around the saddle-point solution are ob… [Phys. Rev. A 92, 023412] Published Wed Aug 12, 2015

Schlagwort(e): Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

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19

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Chiral triplet superconductivity on the graphene lattice (2015)

J. P. L. Faye, P. Sahebsara, and D. Sénéchal

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-13

Beschreibung: Author(s): J. P. L. Faye, P. Sahebsara, and D. Sénéchal Motivated by the possibility of superconductivity in doped graphene sheets, we investigate superconducting order in the extended Hubbard model on the two-dimensional graphene lattice using the variational cluster approximation (VCA) and the cellular dynamical mean-field theory (CDMFT) with an exact … [Phys. Rev. B 92, 085121] Published Wed Aug 12, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Infinite matrix product states, boundary conformal field theory, and the open Haldane-Shastry model (2015)

Hong-Hao Tu and Germán Sierra

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-07-30

Beschreibung: Author(s): Hong-Hao Tu and Germán Sierra We show that infinite matrix product states (MPSs) constructed from conformal field theories can describe ground states of one-dimensional critical systems with open boundary conditions. To illustrate this, we consider a simple infinite MPS for a spin-1/2 chain and derive an inhomogeneous open Halda… [Phys. Rev. B 92, 041119(R)] Published Wed Jul 29, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Topological states in a microscopic model of interacting fermions (2015)

Nicolai Lang and Hans Peter Büchler

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-07-30

Beschreibung: Author(s): Nicolai Lang and Hans Peter Büchler Motivated by the question of topological classification in interacting models the authors study an exactly solvable two-leg ladder model of spinless fermions with attractive interactions and find its ground states and correlation functions. They also demonstrate the appearance of topologically protected edge states and derive their braiding properties on a microscopic level. [Phys. Rev. B 92, 041118(R)] Published Wed Jul 29, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Covalency in oxidized uranium (2015)

J. G. Tobin, S.-W. Yu, R. Qiao, W. L. Yang, C. H. Booth, D. K. Shuh, A. M. Duffin, D. Sokaras, D. Nordlund, and T.-C. Weng

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-07-30

Beschreibung: Author(s): J. G. Tobin, S.-W. Yu, R. Qiao, W. L. Yang, C. H. Booth, D. K. Shuh, A. M. Duffin, D. Sokaras, D. Nordlund, and T.-C. Weng Using x-ray emission spectroscopy and absorption spectroscopy, it has been possible to directly access the states in the unoccupied conduction bands that are involved with 5 f and 6 d covalency in oxidized uranium. By varying the oxidizing agent, the degree of 5 f covalency can be manipulated and monit… [Phys. Rev. B 92, 045130] Published Wed Jul 29, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Large and small Fermi-surface spin density waves in the Kondo lattice model (2015)

Robert Peters and Norio Kawakami

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-04

Beschreibung: Author(s): Robert Peters and Norio Kawakami We demonstrate the existence of metallic spin density waves (SDWs) in the Kondo lattice model on a square lattice for a wide range of parameters by means of real space dynamical mean-field theory. In these SDWs, the spin polarization as well as the charge density depend on the lattice site and are m… [Phys. Rev. B 92, 075103] Published Mon Aug 03, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Interactions along an entanglement cut in 2+1D Abelian topological phases (2015)

Jennifer Cano, Taylor L. Hughes, and Michael Mulligan

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-04

Beschreibung: Author(s): Jennifer Cano, Taylor L. Hughes, and Michael Mulligan A given fractional quantum Hall state may admit multiple, distinct edge phases on its boundary. We explore the implications that multiple edge phases have for the entanglement spectrum and entropy of a given bulk state. We describe the precise manner in which the entanglement spectrum depends upon l… [Phys. Rev. B 92, 075104] Published Mon Aug 03, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Pseudopotential for the electron-electron interaction (2015)

J. H. Lloyd-Williams, R. J. Needs, and G. J. Conduit

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-06

Beschreibung: Author(s): J. H. Lloyd-Williams, R. J. Needs, and G. J. Conduit We propose a pseudopotential for the electron-electron Coulomb interaction to improve the efficiency of many-body electronic structure calculations. The pseudopotential accurately replicates the scattering properties of the Coulomb interaction, and recovers the analytical solution for two electrons … [Phys. Rev. B 92, 075106] Published Wed Aug 05, 2015

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Non-Abelian phases in two-component ν=2/3 fractional quantum Hall states: Emergence of Fibonacci anyons (2015)

Zhao Liu, Abolhassan Vaezi, Kyungmin Lee, and Eun-Ah Kim

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-06

Beschreibung: Author(s): Zhao Liu, Abolhassan Vaezi, Kyungmin Lee, and Eun-Ah Kim Recent theoretical insights into the possibility of non-Abelian phases in ν = 2 / 3 fractional quantum Hall states revived the interest in the numerical phase diagram of the problem. We investigate the effect of various kinds of two-body interlayer couplings on the (330) bilayer state and exactly solve … [Phys. Rev. B 92, 081102(R)] Published Wed Aug 05, 2015

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NMR evidence of anisotropic Kondo liquid behavior in CeIrIn_{5} (2015)

A. C. Shockley, K. R. Shirer, J. Crocker, A. P. Dioguardi, C. H. Lin, D. M. Nisson, N. ap; Roberts-Warren, P. Klavins, and N. J. Curro

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-06

Beschreibung: Author(s): A. C. Shockley, K. R. Shirer, J. Crocker, A. P. Dioguardi, C. H. Lin, D. M. Nisson, N. apRoberts-Warren, P. Klavins, and N. J. Curro We report detailed Knight-shift measurements of the two indium sites in the heavy-fermion compound CeIrIn 5 as a function of temperature and field orientation. We find that the Knight-shift anomaly is orientation dependent, with a crossover temperature T * that varies by 50% as the field is rotated fr… [Phys. Rev. B 92, 085108] Published Wed Aug 05, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Scanning tunneling microscopy of the charge density wave in 1T−TiSe_{2} in the presence of single atom defects (2015)

A. M. Novello, B. Hildebrand, A. Scarfato, C. Didiot, G. Monney, A. Ubaldini, H. Berger, D. R. Bowler, P. Aebi, and Ch. Renner

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-06

Beschreibung: Author(s): A. M. Novello, B. Hildebrand, A. Scarfato, C. Didiot, G. Monney, A. Ubaldini, H. Berger, D. R. Bowler, P. Aebi, and Ch. Renner We present a detailed low-temperature scanning tunneling microscopy (STM) study of the commensurate charge density wave (CDW) in 1 T − TiSe 2 in the presence of single atom defects. We find no significant modification of the CDW lattice in single crystals with native defect concentrations where some bul… [Phys. Rev. B 92, 081101(R)] Published Tue Aug 04, 2015

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Thermodynamic consistency of the charge response in dynamical mean-field based approaches (2015)

Erik G. C. P. van Loon, Hartmut Hafermann, Alexander I. Lichtenstein, and Mikhail I. Katsnelson

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Erik G. C. P. van Loon, Hartmut Hafermann, Alexander I. Lichtenstein, and Mikhail I. Katsnelson We consider the thermodynamic consistency of the charge response function in the (extended) Hubbard model. In dynamical mean-field theory (DMFT), thermodynamic consistency is preserved. We prove that the static, homogeneous DMFT susceptibility is consistent as long as vertex corrections obtained fro… [Phys. Rev. B 92, 085106] Published Tue Aug 04, 2015

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Renormalization group analysis of a neck-narrowing Lifshitz transition in the presence of weak short-range interactions in two dimensions (2015)

Sedigh Ghamari, Sung-Sik Lee, and Catherine Kallin

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): Sedigh Ghamari, Sung-Sik Lee, and Catherine Kallin We study a system of weakly interacting electrons described by the energy dispersion ξ ( k ) = k x 2 − k y 2 − μ in two dimensions within a renormalization group approach. This energy dispersion exhibits a neck-narrowing Lifshitz transition at the critical chemical potential μ c = 0 where a van Hove singularity dev… [Phys. Rev. B 92, 085112] Published Thu Aug 06, 2015

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t_{2g} -orbital model on a honeycomb lattice: Application to the antiferromagnet SrRu_{2} O_{6} (2015)

Da Wang, Wan-Sheng Wang, and Qiang-Hua Wang

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): Da Wang, Wan-Sheng Wang, and Qiang-Hua Wang Motivated by the recent discovery of high-temperature antiferromagnet SrRu 2 O 6 [Hiley et al. , Angew. Chem. Int. Ed. 53 , 4423 (2014) ; Tian et al. , arXiv:1504.03642 ] and its potential to be the parent of a new superconductor upon doping, we construct a minimal t 2 g -orbital model on a honeycomb lattice… [Phys. Rev. B 92, 075112] Published Fri Aug 07, 2015

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Dichroism as a probe for parity-breaking phases of spin-orbit coupled metals (2015)

M. R. Norman

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): M. R. Norman Recently, a general formalism was presented for gyrotropic, ferroelectric, and multipolar order in spin-orbit coupled metals induced by spin-spin interactions. Here, I point out that the resulting order parameters are equivalent to expectation values of operators that determine natural circular dich… [Phys. Rev. B 92, 075113] Published Fri Aug 07, 2015

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Transport properties for a quantum dot coupled to normal leads with a pseudogap (2015)

Bunpei Hara, Akihisa Koga, and Tomosuke Aono

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): Bunpei Hara, Akihisa Koga, and Tomosuke Aono We study transport properties for a quantum dot coupled to normal leads with a pseudogap density of states at zero temperature, using the second-order perturbation theory based on the Keldysh formalism. We clarify that the hybridization function Γ ( ω ) ∝ | ω | r ( 0 ≤ r 〈 1 ) induces the cusp or dip structure … [Phys. Rev. B 92, 081103(R)] Published Thu Aug 06, 2015

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Determination of Tomonaga-Luttinger parameters for a two-component liquid (2015)

Olabode M. Sule, Hitesh J. Changlani, Isao Maruyama, and Shinsei Ryu

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-19

Beschreibung: Author(s): Olabode M. Sule, Hitesh J. Changlani, Isao Maruyama, and Shinsei Ryu We provide evidence for the mapping of critical spin-1 chains, in particular the SU ( 3 ) symmetric bilinear-biquadratic model with additional interactions, to free boson theories using exact diagonalization and the density-matrix renormalization-group algorithm. Using the correspondence with a conform… [Phys. Rev. B 92, 075128] Published Tue Aug 18, 2015

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Large-gap quantum spin Hall states in decorated stanene grown on a substrate (2015)

Yong Xu, Peizhe Tang, and Shou-Cheng Zhang

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-19

Beschreibung: Author(s): Yong Xu, Peizhe Tang, and Shou-Cheng Zhang Two-dimensional stanene is a promising candidate material for realizing a room-temperature quantum spin Hall (QSH) effect. Monolayer stanene has recently been fabricated by molecular beam epitaxy, but shows metallic features on a Bi 2 Te 3 (111) substrate, which motivates us to study the important influ… [Phys. Rev. B 92, 081112(R)] Published Tue Aug 18, 2015

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Testing the nonlocal kinetic energy functional of an inhomogeneous, two-dimensional degenerate Fermi gas within the average density approximation (2015)

J. Towers, B. P. van Zyl, and W. Kirkby

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-21

Beschreibung: Author(s): J. Towers, B. P. van Zyl, and W. Kirkby In a recent paper [B. P. van Zyl et al. , Phys. Rev. A 89 , 022503 (2014) ], the average density approximation (ADA) was implemented to develop a parameter-free, nonlocal kinetic energy functional to be used in the orbital-free density functional theory of an inhomogeneous, two-dimensional (2D) Fermi … [Phys. Rev. B 92, 075129] Published Thu Aug 20, 2015

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Manifestations of topological band crossings in bulk entanglement spectrum: An analytical study for integer quantum Hall states (2015)

Chi-Ken Lu, Dah-Wei Chiou, and Feng-Li Lin

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-21

Beschreibung: Author(s): Chi-Ken Lu, Dah-Wei Chiou, and Feng-Li Lin We consider integer quantum Hall states and calculate the bulk entanglement spectrum by formulating the correlation matrix in the guiding center representation. Our analytical approach is based on the strategy of redefining the inner product of states in the Hilbert space, via a projection operator,… [Phys. Rev. B 92, 075130] Published Thu Aug 20, 2015

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Incomplete protection of the surface Weyl cones of the Kondo insulator SmB_{6} : Spin exciton scattering (2015)

G. A. Kapilevich, P. S. Riseborough, A. X. Gray, M. Gulacsi, Tomasz Durakiewicz, and J. L. Smith

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-21

Beschreibung: Author(s): G. A. Kapilevich, P. S. Riseborough, A. X. Gray, M. Gulacsi, Tomasz Durakiewicz, and J. L. Smith The compound SmB 6 is a Kondo insulator, where the lowest-energy bulk electronic excitations are spin-excitons. It also has surface states that are subjected to strong spin-orbit coupling. It has been suggested that SmB 6 is also a topological insulator. Here we show that, despite the absence of time-… [Phys. Rev. B 92, 085133] Published Thu Aug 20, 2015

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Real-space Eliashberg approach to charge order of electrons coupled to dynamic antiferromagnetic fluctuations (2015)

Johannes Bauer and Subir Sachdev

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-21

Beschreibung: Author(s): Johannes Bauer and Subir Sachdev We study charge-ordered solutions for fermions on a square lattice interacting with dynamic antiferromagnetic fluctuations. Our approach is based on real-space Eliashberg equations, which are solved self-consistently. We first show that the antiferromagnetic fluctuations can induce arc features in t… [Phys. Rev. B 92, 085134] Published Thu Aug 20, 2015

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Electronic spin susceptibilities and superconductivity in HgBa_{2} CuO_{4+δ} from nuclear magnetic resonance (2015)

Damian Rybicki, Jonas Kohlrautz, Jürgen Haase, Martin Greven, Xudong Zhao, Mun K. Chan, Chelsey J. Dorow, and Michael J. Veit

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-25

Beschreibung: Author(s): Damian Rybicki, Jonas Kohlrautz, Jürgen Haase, Martin Greven, Xudong Zhao, Mun K. Chan, Chelsey J. Dorow, and Michael J. Veit Nuclear magnetic resonance (NMR) experiments on single crystals of HgBa 2 CuO 4 + δ are presented that identify two distinct temperature-dependent spin susceptibilities: One is due to a spin component that is temperature-dependent above the critical temperature for superconductivity ( T c ) and reflects pse… [Phys. Rev. B 92, 081115(R)] Published Mon Aug 24, 2015

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Sr_{2} Ir_{1−x} Rh_{x} O_{4} (x〈0.5): An inhomogeneous j_{eff} =1/2 Hubbard system (2015)

Shalinee Chikara, Daniel Haskel, Jae-Hoon Sim, Heung-Sik Kim, Cheng-Chien Chen, G. Fabbris, L. S. I. Veiga, N. M. Souza-Neto, J. Terzic, K. Butrouna, G. Cao, Myung Joon Han, and Michel van Veenendaal

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-25

Beschreibung: Author(s): Shalinee Chikara, Daniel Haskel, Jae-Hoon Sim, Heung-Sik Kim, Cheng-Chien Chen, G. Fabbris, L. S. I. Veiga, N. M. Souza-Neto, J. Terzic, K. Butrouna, G. Cao, Myung Joon Han, and Michel van Veenendaal In a combined experimental and theoretical study, we investigate the properties of Sr 2 Ir 1 − x Rh x O 4 . From the branching ratios of the L -edge isotropic x-ray absorption spectra, we determine that the spin-orbit coupling is remarkably independent of x for both iridium and rhodium sites. DFT + U calculation… [Phys. Rev. B 92, 081114(R)] Published Mon Aug 24, 2015

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Spatially resolved Landau level spectroscopy of the topological Dirac cone of bulk-type Sb_{2} Te_{3} (0001): Potential fluctuations and quasiparticle lifetime (2015)

C. Pauly, C. Saunus, M. Liebmann, and M. Morgenstern

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-25

Beschreibung: Author(s): C. Pauly, C. Saunus, M. Liebmann, and M. Morgenstern Using low-temperature scanning tunneling spectroscopy, we probe the Landau levels of the topologically protected state of Sb 2 Te 3 (0001) after in situ cleavage of a single crystal. Landau levels are visible for magnetic fields B ≥ 2 T at energies, which confirm the Dirac type dispersion including the ze… [Phys. Rev. B 92, 085140] Published Mon Aug 24, 2015

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Camelback-shaped band reconciles heavy-electron behavior with weak electronic Coulomb correlations in superconducting TlNi_{2} Se_{2} (2015)

N. Xu, C. E. Matt, P. Richard, A. van Roekeghem, S. Biermann, X. Shi, S.-F. Wu, H. W. Liu, D. Chen, T. Qian, N. C. Plumb, M. Radović, Hangdong Wang, Qianhui Mao, Jianhua Du, Minghu Fang, J. Mesot, H. Ding, and M. Shi

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-25

Beschreibung: Author(s): N. Xu, C. E. Matt, P. Richard, A. van Roekeghem, S. Biermann, X. Shi, S.-F. Wu, H. W. Liu, D. Chen, T. Qian, N. C. Plumb, M. Radović, Hangdong Wang, Qianhui Mao, Jianhua Du, Minghu Fang, J. Mesot, H. Ding, and M. Shi Combining photoemission spectroscopy, Raman spectroscopy, and first-principles calculations, we characterize superconducting TlNi 2 Se 2 as a material with weak electronic Coulomb correlations leading to a bandwidth renormalization of 1.4. We identify a camelback-shaped band, whose energetic position s… [Phys. Rev. B 92, 081116(R)] Published Mon Aug 24, 2015

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Metal-insulator transition and local-moment collapse in FeO under pressure (2015)

I. Leonov

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-25

Beschreibung: Author(s): I. Leonov We employ a combination of the ab initio band-structure methods and dynamical mean-field theory to determine the electronic structure and phase stability of paramagnetic FeO at high pressure and temperature. Our results reveal a high-spin to low-spin transition within the B1 crystal structure of FeO… [Phys. Rev. B 92, 085142] Published Mon Aug 24, 2015

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Dynamic conductivity scaling in photoexcited V_{2} O_{3} thin films (2015)

Elsa Abreu, Siming Wang, Juan Gabriel Ramírez, Mengkun Liu, Jingdi Zhang, Kun Geng, Ivan K. Schuller, and Richard D. Averitt

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-19

Beschreibung: Author(s): Elsa Abreu, Siming Wang, Juan Gabriel Ramírez, Mengkun Liu, Jingdi Zhang, Kun Geng, Ivan K. Schuller, and Richard D. Averitt Optical-pump terahertz-probe spectroscopy is used to investigate ultrafast far-infrared conductivity dynamics during the insulator-to-metal transition in vanadium sesquioxide ( V 2 O 3 ) . The resultant conductivity increase occurs on a tens of picosecond time scale, exhibiting a strong dependence on the … [Phys. Rev. B 92, 085130] Published Tue Aug 18, 2015

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Robust Josephson-Kondo screening cloud in circuit quantum electrodynamics (2015)

Izak Snyman and Serge Florens

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-19

Beschreibung: Author(s): Izak Snyman and Serge Florens We investigate the entanglement properties of a standard circuit-QED setup that consists of a Cooper pair box coupled to a long chain of Josephson junctions. We calculate the static charge polarization at finite distances along the device. Our calculations reveal a deep connection to the Kondo scree… [Phys. Rev. B 92, 085131] Published Tue Aug 18, 2015

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Interplay of electron-electron and electron-phonon interactions in the low-temperature phase of 1T−TaS_{2} (2015)

Doohee Cho, Yong-Heum Cho, Sang-Wook Cheong, Ki-Seok Kim, and Han Woong Yeom

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-19

Beschreibung: Author(s): Doohee Cho, Yong-Heum Cho, Sang-Wook Cheong, Ki-Seok Kim, and Han Woong Yeom We investigate the interplay of the electron-electron and electron-phonon interactions in the electronic structure of an exotic insulating state in the layered dichalcogenide 1 T − TaS 2 , where the charge-density-wave (CDW) order coexists with a Mott correlation gap. Scanning tunneling microscopy and sp… [Phys. Rev. B 92, 085132] Published Tue Aug 18, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Energy repartition for a harmonic chain with local reservoirs (2015)

Gianmaria Falasco, Marco Baiesi, Leo Molinaro, Livia Conti, and Fulvio Baldovin

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-20

Beschreibung: Author(s): Gianmaria Falasco, Marco Baiesi, Leo Molinaro, Livia Conti, and Fulvio Baldovin We exactly analyze the vibrational properties of a chain of harmonic oscillators in contact with local Langevin heat baths. Nonequilibrium steady-state fluctuations are found to be described by a set of mode temperatures, independent of the strengths of both the harmonic interaction and the viscous … [Phys. Rev. E 92, 022129] Published Wed Aug 19, 2015

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Principle of minimal work fluctuations (2015)

Gaoyang Xiao and Jiangbin Gong

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-20

Beschreibung: Author(s): Gaoyang Xiao and Jiangbin Gong Understanding and manipulating work fluctuations in microscale and nanoscale systems are of both fundamental and practical interest. For example, in considering the Jarzynski equality 〈 e − β W 〉 = e − β Δ F , a change in the fluctuations of e − β W may impact how rapidly the statistical average of e − β W converges … [Phys. Rev. E 92, 022130] Published Wed Aug 19, 2015

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Nonlinear Zeeman effect in photoassociation spectra of ^{40} Ca near the ^{3} P _{1} + ^{1} S _{0} asymptote (2015)

Eberhard Tiemann, Max Kahmann, Evgenij Pachomow, Fritz Riehle, and Uwe Sterr

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-21

Beschreibung: Author(s): Eberhard Tiemann, Max Kahmann, Evgenij Pachomow, Fritz Riehle, and Uwe Sterr We present calculations of the Zeeman effect of narrow photoassociation lines of Ca 40 near the P 1 3 + S 0 1 asymptote. Using a coupled-channel model we find a nonlinear Zeeman effect that even at low fields of a few mT amounts to several kHz. With this model we analyze previous measurements and give corr… [Phys. Rev. A 92, 023419] Published Thu Aug 20, 2015

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Quantum oscillations in the heavy-fermion compound YbPtBi (2015)

E. Mun, S. L. Bud'ko, Y. Lee, C. Martin, M. A. Tanatar, R. Prozorov, and P. C. Canfield

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-21

Beschreibung: Author(s): E. Mun, S. L. Bud'ko, Y. Lee, C. Martin, M. A. Tanatar, R. Prozorov, and P. C. Canfield Heavy fermion systems are useful for studying quantum criticality because the low energy scale associated with their large effective mass can be tuned by nonthermal control parameters. Here, Shubnikov-de Haas oscillations are observed in YbPtBi, a heavy fermion compound with an exceptionally large effective mass for electrons, at a high magnetic field that reveals the shape of the Fermi surface. In the future these observations, when combined with additional data at lower magnetic fields, could provide important information about quantum criticality in these systems. [Phys. Rev. B 92, 085135] Published Thu Aug 20, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Collisional statistics and dynamics of two-dimensional hard-disk systems: From fluid to solid (2015)

Alessandro Taloni, Yasmine Meroz, and Adrián Huerta

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-21

Beschreibung: Author(s): Alessandro Taloni, Yasmine Meroz, and Adrián Huerta We perform extensive MD simulations of two-dimensional systems of hard disks, focusing on the collisional statistical properties. We analyze the distribution functions of velocity, free flight time, and free path length for packing fractions ranging from the fluid to the solid phase. The behaviors o… [Phys. Rev. E 92, 022131] Published Thu Aug 20, 2015

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Attosecond double-ionization dynamics of aligned H_{2} : Two-dimensional quantum simulations (2015)

Shang Wang and Yanjun Chen

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-21

Beschreibung: Author(s): Shang Wang and Yanjun Chen A fully quantum procedure, based on the numerical solution of the time-dependent Schrödinger equation (TDSE) with two spatial dimensions for every electron, is developed to study the attosecond double-ionization (DI) dynamics from aligned H 2 molecules in strong laser fields. Our simulations are able… [Phys. Rev. A 92, 023418] Published Thu Aug 20, 2015

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Dynamical and anharmonic effects on the electron-phonon coupling and the zero-point renormalization of the electronic structure (2015)

G. Antonius, S. Poncé, E. Lantagne-Hurtubise, G. Auclair, X. Gonze, and M. Côté

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-22

Beschreibung: Author(s): G. Antonius, S. Poncé, E. Lantagne-Hurtubise, G. Auclair, X. Gonze, and M. Côté The renormalization of the band structure at zero temperature due to electron-phonon coupling is explored in diamond, BN, LiF, and MgO crystals. We implement a dynamical scheme to compute the frequency-dependent self-energy and the resulting quasiparticle electronic structure. Our calculations revea… [Phys. Rev. B 92, 085137] Published Fri Aug 21, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Electron-phonon coupling in a system with broken symmetry: Surface of Be(0001) (2015)

Te; Yu Chien (簡德宇), Xiaobo He, Sung-Kwan Mo, Makoto Hashimoto, Zahid Hussain, Zhi-Xun Shen, and E. W. Plummer

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-22

Beschreibung: Author(s): TeYu Chien (簡德宇), Xiaobo He, Sung-Kwan Mo, Makoto Hashimoto, Zahid Hussain, Zhi-Xun Shen, and E. W. Plummer The momentum-resolved Eliashberg function (ELF) α 2 F ( ω , k ⇀ ) for the Be ( 0001 ) zone-center surface state was extracted from the high-quality angle-resolved photoemission spectroscopy (ARPES) data at the Fermi energy in the Γ ¯ → M ¯ direction, displaying ten peaks. A comparison of the peaks in the ELF to th… [Phys. Rev. B 92, 075133] Published Fri Aug 21, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Chiral degeneracies and Fermi-surface Chern numbers in bcc Fe (2015)

Daniel Gosálbez-Martínez, Ivo Souza, and David Vanderbilt

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-22

Beschreibung: Author(s): Daniel Gosálbez-Martínez, Ivo Souza, and David Vanderbilt Using bcc Fe as a playground, the authors investigate the presence of chiral degeneracies in realistic band structures of ferromagnetic materials. They find ubiquitous Weyl points and demonstrate that Chern numbers can be transferred between Fermi sheets by varying the Fermi level or an external parameter such as the magnetization direction. [Phys. Rev. B 92, 085138] Published Fri Aug 21, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Enhancement of mobility in an interacting colloidal system under feedback control (2015)

Robert Gernert and Sabine H. L. Klapp

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-22

Beschreibung: Author(s): Robert Gernert and Sabine H. L. Klapp Feedback control schemes are a promising way to manipulate transport properties of driven colloidal suspensions. In the present article, we suggest a feedback scheme to enhance the collective transport of colloidal particles with repulsive interactions through a one-dimensional tilted washboard pote… [Phys. Rev. E 92, 022132] Published Fri Aug 21, 2015

Schlagwort(e): Statistical Physics

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Compression of correlation matrices and an efficient method for forming matrix product states of fermionic Gaussian states (2015)

Matthew T. Fishman and Steven R. White

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-22

Beschreibung: Author(s): Matthew T. Fishman and Steven R. White Here we present an efficient and numerically stable procedure for compressing a correlation matrix into a set of local unitary single-particle gates, which leads to a very efficient way of forming the matrix product state (MPS) approximation of a pure fermionic Gaussian state, such as the ground sta… [Phys. Rev. B 92, 075132] Published Fri Aug 21, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Gibbs volume entropy is incorrect (2015)

Robert H. Swendsen and Jian-Sheng Wang

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-22

Beschreibung: Author(s): Robert H. Swendsen and Jian-Sheng Wang We show that the expression for the equilibrium thermodynamic entropy contains an integral over a surface in phase space, and in so doing, we confirm that negative temperature is a valid thermodynamic concept. This demonstration disproves the claims of several recent papers that the Gibbs entropy, w… [Phys. Rev. E 92, 020103(R)] Published Fri Aug 21, 2015

Schlagwort(e): Statistical Physics

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Low-energy model and electron-hole doping asymmetry of single-layer Ruddlesden-Popper iridates (2015)

Alexander Hampel, Christoph Piefke, and Frank Lechermann

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-25

Beschreibung: Author(s): Alexander Hampel, Christoph Piefke, and Frank Lechermann We study the correlated electronic structure of single-layer iridates based on structurally undistorted Ba 2 IrO 4 . Starting from the first-principles band structure, the interplay between local Coulomb interactions and spin-orbit coupling is investigated by means of rotational-invariant slave-boson me… [Phys. Rev. B 92, 085141] Published Mon Aug 24, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Overlap and activity glass transitions in plaquette spin models with hierarchical dynamics (2015)

Robert M. Turner, Robert L. Jack, and Juan P. Garrahan

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Robert M. Turner, Robert L. Jack, and Juan P. Garrahan We consider thermodynamic and dynamic phase transitions in plaquette spin models of glasses. The thermodynamic transitions involve coupled (annealed) replicas of the model. We map these coupled-replica systems to a single replica in a magnetic field, which allows us to analyze the resulting phase tr… [Phys. Rev. E 92, 022115] Published Mon Aug 10, 2015

Schlagwort(e): Statistical Physics

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Fluorescence polarization imaging of Sisyphus cooling in an atomic beam (2015)

B. M. Sparkes, K. P. Weber, C. J. Hawthorn, M. R. Walkiewicz, E. J. D. Vredenbregt, and R. E. Scholten

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): B. M. Sparkes, K. P. Weber, C. J. Hawthorn, M. R. Walkiewicz, E. J. D. Vredenbregt, and R. E. Scholten Sisyphus cooling plays an important role in many cold atom applications including the formation of Bose-Einstein condensates and collimation of atomic beams. Here we present a method for measuring the localization of atoms by monitoring the polarization of fluorescence, providing a quantitative two-… [Phys. Rev. A 92, 023411] Published Tue Aug 11, 2015

Schlagwort(e): Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

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Delayed electron emission from fullerene dianions: Evidence for a thermal tunneling detachment (2015)

Bruno Concina, Franck Lépine, and Christian Bordas

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): Bruno Concina, Franck Lépine, and Christian Bordas Isolated multiply charged anions exhibit a repulsive Coulomb barrier (RCB) towards electron loss. In this paper, the role of tunneling through the RCB in the delayed electron emission is addressed. Electron kinetic energy distributions of photoexcited fullerene dianions C 84 2 − and C 90 2 − have been mea… [Phys. Rev. A 92, 023410] Published Tue Aug 11, 2015

Schlagwort(e): Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

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Triple ionization of atomic Cd involving 4p^{−1} and 4s^{−1} inner-shell holes (2015)

J. Andersson, R. Beerwerth, P. Linusson, J. H. D. Eland, V. Zhaunerchyk, S. Fritzsche, and R. Feifel

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-13

Beschreibung: Author(s): J. Andersson, R. Beerwerth, P. Linusson, J. H. D. Eland, V. Zhaunerchyk, S. Fritzsche, and R. Feifel The triple ionization spectrum of atomic Cd formed upon the removal of a 4 p or a 4 s inner-shell electron and subsequent Auger decays has been obtained at 200 eV photon energy. By using a versatile multielectron coincidence detection technique based on a magnetic bottle spectrometer in combination wi… [Phys. Rev. A 92, 023414] Published Wed Aug 12, 2015

Schlagwort(e): Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

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Nonequilibrium transport and statistics of Schwinger pair production in Weyl semimetals (2015)

Szabolcs Vajna, Balázs Dóra, and R. Moessner

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-15

Beschreibung: Author(s): Szabolcs Vajna, Balázs Dóra, and R. Moessner The nonequilibrium dynamics beyond the linear response of Weyl semimetals is studied after a sudden switching on of a dc electric field. The resulting current is a nonmonotonic function of time with an initial quick increase in polarization current followed by a power-law decay. Particle-hole creati… [Phys. Rev. B 92, 085122] Published Thu Aug 13, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Phase coexistence and particle nonconservation in a closed asymmetric exclusion process with inhomogeneities (2015)

Tirthankar Banerjee, Anjan Kumar Chandra, and Abhik Basu

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-15

Beschreibung: Author(s): Tirthankar Banerjee, Anjan Kumar Chandra, and Abhik Basu We construct a one-dimensional totally asymmetric simple exclusion process (TASEP) on a ring with two segments having unequal hopping rates, coupled to particle nonconserving Langmuir kinetics (LK) characterized by equal attachment and detachment rates. In the steady state, in the limit of competing… [Phys. Rev. E 92, 022121] Published Thu Aug 13, 2015

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Ground states of stealthy hyperuniform potentials. II. Stacked-slider phases (2015)

G. Zhang, F. H. Stillinger, and S. Torquato

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-15

Beschreibung: Author(s): G. Zhang, F. H. Stillinger, and S. Torquato Stealthy potentials, a family of long-range isotropic pair potentials, produce infinitely degenerate disordered ground states at high densities and crystalline ground states at low densities in d -dimensional Euclidean space R d . In the previous paper in this series, we numerically studied the entropi… [Phys. Rev. E 92, 022120] Published Thu Aug 13, 2015

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K -shell photoionization of O^{+} and O^{2+} ions: Experiment and theory (2015)

J. M. Bizau, D. Cubaynes, S. Guilbaud, M. M. Al Shorman, M. F. Gharaibeh, I. Q. Ababneh, C. Blancard, and B. M. McLaughlin

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-04

Beschreibung: Author(s): J. M. Bizau, D. Cubaynes, S. Guilbaud, M. M. Al Shorman, M. F. Gharaibeh, I. Q. Ababneh, C. Blancard, and B. M. McLaughlin Absolute cross sections for the single and double K -shell photoionization of carbonlike O 2 + and nitrogenlike O + ions were measured in the 526–620-eV photon energy range by employing the ion-photon merged-beam technique at the SOLEIL synchrotron radiation facility. High-resolution spectroscopy up to … [Phys. Rev. A 92, 023401] Published Mon Aug 03, 2015

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Ionization of argon by two-color laser pulses with coherent phase control (2015)

D. G. Arbó, C. Lemell, S. Nagele, N. Camus, L. Fechner, A. Krupp, T. Pfeifer, S. D. López, R. Moshammer, and J. Burgdörfer

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-04

Beschreibung: Author(s): D. G. Arbó, C. Lemell, S. Nagele, N. Camus, L. Fechner, A. Krupp, T. Pfeifer, S. D. López, R. Moshammer, and J. Burgdörfer We present a joint experimental and theoretical study of ionization of argon atoms by a linearly polarized two-color laser field ( λ 1 = 800 nm, λ 2 = 400 nm). Changing the relative phase φ between the two colors, the forward-backward asymmetry of the doubly differential momentum distribution of emitted el… [Phys. Rev. A 92, 023402] Published Mon Aug 03, 2015

Schlagwort(e): Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

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Cluster-based mean-field and perturbative description of strongly correlated fermion systems: Application to the one- and two-dimensional Hubbard model (2015)

Carlos A. Jiménez-Hoyos and Gustavo E. Scuseria

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-04

Beschreibung: Author(s): Carlos A. Jiménez-Hoyos and Gustavo E. Scuseria We introduce a mean-field and a perturbative approach, based on clusters, to describe the ground state of fermionic strongly correlated systems. In the cluster mean-field approach, the ground-state wave function is written as a simple tensor product over optimized cluster states. The optimization of… [Phys. Rev. B 92, 085101] Published Mon Aug 03, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Wannier function approach to realistic Coulomb interactions in layered materials and heterostructures (2015)

M. Rösner, E. Şaşıoğlu, C. Friedrich, S. Blügel, and T. O. Wehling

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): M. Rösner, E. Şaşıoğlu, C. Friedrich, S. Blügel, and T. O. Wehling We introduce an approach to derive realistic Coulomb interaction terms in freestanding layered materials and vertical heterostructures from ab initio modeling of the corresponding bulk materials. To this end, we establish a combination of calculations within the framework of the constrained random-p… [Phys. Rev. B 92, 085102] Published Mon Aug 03, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Anomalous quantum Hall effect induced by disorder in topological insulators (2015)

Laurent Raymond, Alberto D. Verga, and Arnaud Demion

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Laurent Raymond, Alberto D. Verga, and Arnaud Demion We investigate a transition between a two-dimensional topological insulator conduction state, characterized by a conductance G = 2 (in fundamental units e 2 / h ) and a Chern insulator with G = 1 , induced by polarized magnetic impurities. Two kinds of coupling, ferromagnetic and antiferromagnetic, are consi… [Phys. Rev. B 92, 075101] Published Mon Aug 03, 2015

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Robust local and nonlocal transport in the topological Kondo insulator SmB_{6} in the presence of a high magnetic field (2015)

Sangram Biswas, Ramya Nagarajan, Suman Sarkar, Kazi Rafsanjani Amin, M. Ciomaga Hatnean, S. Tewari, G. Balakrishnan, and Aveek Bid

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Sangram Biswas, Ramya Nagarajan, Suman Sarkar, Kazi Rafsanjani Amin, M. Ciomaga Hatnean, S. Tewari, G. Balakrishnan, and Aveek Bid SmB 6 has been predicted to be a Kondo topological insulator with topologically protected conducting surface states. We have studied quantitatively the electrical transport through surface states in high-quality single crystals of SmB 6 . We observe a large nonlocal surface signal at temperatures lower… [Phys. Rev. B 92, 085103] Published Mon Aug 03, 2015

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FLEX+DMFT approach to the d-wave superconducting phase diagram of the two-dimensional Hubbard model (2015)

Motoharu Kitatani, Naoto Tsuji, and Hideo Aoki

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Motoharu Kitatani, Naoto Tsuji, and Hideo Aoki The dynamical mean-field theory (DMFT) combined with the fluctuation exchange (FLEX) method, namely, FLEX+DMFT, is an approach for correlated electron systems to incorporate both local and nonlocal long-range correlations in a self-consistent manner. We formulate FLEX+DMFT in a systematic way starti… [Phys. Rev. B 92, 085104] Published Mon Aug 03, 2015

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How accurately can the microcanonical ensemble describe small isolated quantum systems? (2015)

Tatsuhiko N. Ikeda and Masahito Ueda

American Physical Society (APS)

In: Physical Review E

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Beschreibung: Author(s): Tatsuhiko N. Ikeda and Masahito Ueda We numerically investigate quantum quenches of a nonintegrable hard-core Bose-Hubbard model to test the accuracy of the microcanonical ensemble in small isolated quantum systems. We show that, in a certain range of system size, the accuracy increases with the dimension of the Hilbert space D as 1 / D .… [Phys. Rev. E 92, 020102(R)] Published Wed Aug 05, 2015

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Composition and temperature dependence of the Yb valence in YbMn_{6} Ge_{6−x} Sn_{x} studied by RIXS (2015)

T. Mazet, D. Malterre, M. François, L. Eichenberger, M. Grioni, C. Dallera, and G. Monaco

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): T. Mazet, D. Malterre, M. François, L. Eichenberger, M. Grioni, C. Dallera, and G. Monaco We investigate the composition and temperature (10–450 K) dependence of the Yb valence in YbMn 6 Ge 6 − x Sn x ( x = 0.0 , 3.8, 4.2, 4.4, and 5.5) using resonant inelastic x-ray scattering (RIXS). The observed change in the Yb valence with composition (from υ ∼ 3 for x = 0 to υ ∼ 2.7 for x = 5.5 ) is likely driven by n… [Phys. Rev. B 92, 075105] Published Wed Aug 05, 2015

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Post-measurement bipartite entanglement entropy in conformal field theories (2015)

M. A. Rajabpour

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): M. A. Rajabpour We derive exact formulas for bipartite von Neumann entanglement entropy after partial projective local measurement in ( 1 + 1 ) -dimensional conformal field theories with periodic and open boundary conditions. After defining the setup we will check numerically the validity of our results in the case of K… [Phys. Rev. B 92, 075108] Published Wed Aug 05, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Comparison of eigeninference based on one- and two-point Green's functions (2015)

Zbigniew Drogosz, Jerzy Jurkiewicz, Grzegorz Łukaszewski, and Maciej A. Nowak

American Physical Society (APS)

In: Physical Review E

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Beschreibung: Author(s): Zbigniew Drogosz, Jerzy Jurkiewicz, Grzegorz Łukaszewski, and Maciej A. Nowak We compare two methods of eigeninference from large sets of data. Our analysis points at the superiority of our eigeninference method based on one-point Green's functions and Padé approximants over a method based on fluctuations and two-point Green's functions. The first method is orders of magnitud… [Phys. Rev. E 92, 022111] Published Fri Aug 07, 2015

Schlagwort(e): Statistical Physics

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Spectral renormalization group for the Gaussian model and ψ^{4} theory on nonspatial networks (2015)

Aslı Tuncer and Ayşe Erzan

American Physical Society (APS)

In: Physical Review E

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Beschreibung: Author(s): Aslı Tuncer and Ayşe Erzan We implement the spectral renormalization group on different deterministic nonspatial networks without translational invariance. We calculate the thermodynamic critical exponents for the Gaussian model on the Cayley tree and the diamond lattice and find that they are functions of the spectral dimens… [Phys. Rev. E 92, 022106] Published Thu Aug 06, 2015

Schlagwort(e): Statistical Physics

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One- and two-dimensional quantum models: Quenches and the scaling of irreversible entropy (2015)

Shraddha Sharma and Amit Dutta

American Physical Society (APS)

In: Physical Review E

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Beschreibung: Author(s): Shraddha Sharma and Amit Dutta Using the scaling relation of the ground state quantum fidelity, we propose the most generic scaling relations of the irreversible work (the residual energy) of a closed quantum system at absolute zero temperature when one of the parameters of its Hamiltonian is suddenly changed. We consider two ext… [Phys. Rev. E 92, 022108] Published Thu Aug 06, 2015

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Nonequilibrium is different (2015)

T. R. Kirkpatrick and J. R. Dorfman

American Physical Society (APS)

In: Physical Review E

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Beschreibung: Author(s): T. R. Kirkpatrick and J. R. Dorfman Nonequilibrium and equilibrium fluid systems differ due to the existence of long-range correlations in nonequilibrium that are not present in equilibrium, except at critical points. Here we examine fluctuations of the temperature, of the pressure tensor, and of the heat current in a fluid maintained… [Phys. Rev. E 92, 022109] Published Thu Aug 06, 2015

Schlagwort(e): Statistical Physics

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Effective interactions between fluid membranes (2015)

Bing-Sui Lu and Rudolf Podgornik

American Physical Society (APS)

In: Physical Review E

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Beschreibung: Author(s): Bing-Sui Lu and Rudolf Podgornik A self-consistent theory is proposed for the general problem of interacting undulating fluid membranes subject to the constraint that they do not interpenetrate. We implement the steric constraint via an exact functional integral representation and, through the use of a saddle-point approximation, t… [Phys. Rev. E 92, 022112] Published Fri Aug 07, 2015

Schlagwort(e): Statistical Physics

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Ashkin-Teller model and diverse opinion phase transitions on multiplex networks (2015)

S. Jang, J. S. Lee, S. Hwang, and B. Kahng

American Physical Society (APS)

In: Physical Review E

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Beschreibung: Author(s): S. Jang, J. S. Lee, S. Hwang, and B. Kahng Multiplex networks (MNs) have become a platform of recent research in network sciences because networks in many real-world systems interact and function together. One of the main scientific issues in MNs is how the interdependence changes the emerging patterns or phase transitions. Until now, studie… [Phys. Rev. E 92, 022110] Published Fri Aug 07, 2015

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Surface states of perovskite iridates AIrO_{3}: Signatures of a topological crystalline metal with nontrivial Z_{2} index (2015)

Heung-Sik Kim, Yige Chen, and Hae-Young Kee

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-06-06

Beschreibung: Author(s): Heung-Sik Kim, Yige Chen, and Hae-Young Kee There have been increasing efforts in realizing topological metallic phases with nontrivial surface states. It was suggested that orthorhombic perovskite iridates are classified as a topological crystalline metal (TCM) with flat surface states protected by lattice symmetries. Here we perform first-p... [Phys. Rev. B 91, 235103] Published Wed Jun 03, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Charge transport in Ho_{x}Lu_{1−x}B_{12}: Separating positive and negative magnetoresistance in metals with magnetic ions (2015)

N. E. Sluchanko, A. L. Khoroshilov, M. A. Anisimov, A. N. Azarevich, A. V. Bogach, V. V. Glushkov, S. V. Demishev, V. N. Krasnorussky, N. A. Samarin, N. Yu. Shitsevalova, V. B. Filippov, A. V. Levchenko, G. Pristas, S. Gabani, and K. Flachbart

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): N. E. Sluchanko, A. L. Khoroshilov, M. A. Anisimov, A. N. Azarevich, A. V. Bogach, V. V. Glushkov, S. V. Demishev, V. N. Krasnorussky, N. A. Samarin, N. Yu. Shitsevalova, V. B. Filippov, A. V. Levchenko, G. Pristas, S. Gabani, and K. Flachbart The magnetoresistance (MR) Δ ρ / ρ of the cage-glass compound Ho x Lu 1 − x B 12 with various concentrations of magnetic holmium ions ( x ≤ 0.5 ) has been studied in detail concurrently with magnetization M ( T ) and Hall effect investigations on high-quality single crystals at temperatures 1.9–120 K and in magnetic... [Phys. Rev. B 91, 235104] Published Wed Jun 03, 2015

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Casimir effect mechanism of pairing between fermions in the vicinity of a magnetic quantum critical point (2015)

Yaroslav A. Kharkov and Oleg P. Sushkov

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Yaroslav A. Kharkov and Oleg P. Sushkov We consider two spin- 1 / 2 fermions in a two-dimensional magnetic system that is close to the O ( 3 ) magnetic quantum critical point (QCP) which separates magnetically ordered and disordered phases. Focusing on the disordered phase in the vicinity of the QCP, we demonstrate that the criticality results ... [Phys. Rev. B 91, 235105] Published Wed Jun 03, 2015

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Real-time observation of collective excitations in photoemission (2015)

C. Lemell, S. Neppl, G. Wachter, K. Tőkési, R. Ernstorfer, P. Feulner, R. Kienberger, and J. Burgdörfer

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): C. Lemell, S. Neppl, G. Wachter, K. Tőkési, R. Ernstorfer, P. Feulner, R. Kienberger, and J. Burgdörfer A method is proposed to solve a longstanding problem in photoelectron spectroscopy: the determination of the branching ratio between intrinsic and extrinsic plasmon generation. Attosecond metrology in combination with model simulations allow for a disentanglement of these excitation channels providing novel insight into the many-electron response of metals. [Phys. Rev. B 91, 241101(R)] Published Wed Jun 03, 2015

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Observation of the Kondo effect in a quadruple quantum dot (2015)

Runan Shang, Hai-Ou Li, Gang Cao, Guodong Yu, Ming Xiao, Tao Tu, Guang-Can Guo, Hongwen Jiang, A. M. Chang, and Guo-Ping Guo

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Runan Shang, Hai-Ou Li, Gang Cao, Guodong Yu, Ming Xiao, Tao Tu, Guang-Can Guo, Hongwen Jiang, A. M. Chang, and Guo-Ping Guo We investigate the Kondo effect in a quadruple-quantum-dot device of coupled double quantum dots (DQDs), which simultaneously contain intra-DQD and inter-DQD coupling. A variety of novel behaviors are observed. The differential conductance dI / dV is measured in the upper DQDs as a function of source ... [Phys. Rev. B 91, 245102] Published Tue Jun 02, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

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Virtual topological insulators with real quantized physics (2015)

Emil Prodan

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Emil Prodan A concrete strategy is presented for generating strong topological insulators in d + d ′ dimensions which have quantized physics in d dimensions. Here, d counts the physical and d ′ the virtual dimensions. It consists of seeking d -dimensional representations of operator algebras which are usually define... [Phys. Rev. B 91, 245104] Published Wed Jun 03, 2015

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Endpoint contribution to the instantaneous ionization rate for tunneling ionization (2015)

I. A. Ivanov, Chang Hee Nam, and Kyung Taec Kim

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-06-09

Beschreibung: Author(s): I. A. Ivanov, Chang Hee Nam, and Kyung Taec Kim We examine the instantaneous ionization amplitudes and instantaneous ionization rates for the process of tunneling ionization. We show that the endpoint contribution usually neglected in the asymptotic evaluation of the amplitudes, may be significant. For weak fields the instantaneous ionization rat... [Phys. Rev. A 91, 063404] Published Mon Jun 08, 2015

Schlagwort(e): Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

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Three-step approach for computing band offsets and its application to inorganic ABX_{3} halide perovskites (2015)

Li Lang, Yue-Yu Zhang, Peng Xu, Shiyou Chen, H. J. Xiang, and X. G. Gong

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Li Lang, Yue-Yu Zhang, Peng Xu, Shiyou Chen, H. J. Xiang, and X. G. Gong Band offsets between different semiconductors are important parameters that determine the electronic transport properties near the interface in the heterostructure devices. The computation of the natural band offset is a well-known challenge. In this paper, we propose a new method, which is called t… [Phys. Rev. B 92, 075102] Published Mon Aug 03, 2015

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Patterns of electromagnetic response in topological semimetals (2015)

Srinidhi T. Ramamurthy and Taylor L. Hughes

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Srinidhi T. Ramamurthy and Taylor L. Hughes Topological semimetals are gapless states of matter which have robust and unique electromagnetic responses and surface states. In this paper, we consider semimetals which have pointlike Fermi surfaces in various spatial dimensions D = 1 , 2 , 3 which naturally occur in the transition between a weak topolo… [Phys. Rev. B 92, 085105] Published Mon Aug 03, 2015

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Temperature inversion in long-range interacting systems (2015)

Tarcísio N. Teles, Shamik Gupta, Pierfrancesco Di Cintio, and Lapo Casetti

American Physical Society (APS)

In: Physical Review E

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Beschreibung: Author(s): Tarcísio N. Teles, Shamik Gupta, Pierfrancesco Di Cintio, and Lapo Casetti Temperature inversions occur in nature, e.g., in the solar corona and in interstellar molecular clouds: Somewhat counterintuitively, denser parts of the system are colder than dilute ones. We propose a simple and appealing way to spontaneously generate temperature inversions in systems with long-ran… [Phys. Rev. E 92, 020101(R)] Published Mon Aug 03, 2015

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Critical properties of short-range Ising spin glasses on a Wheatstone-bridge hierarchical lattice (2015)

Sebastião T. O. Almeida and Fernando D. Nobre

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-04

Beschreibung: Author(s): Sebastião T. O. Almeida and Fernando D. Nobre An Ising spin-glass model with nearest-neighbor interactions, following a symmetric probability distribution, is investigated on a hierarchical lattice of the Wheatstone-bridge family characterized by a fractal dimension D ≈ 3.58 . The interaction distribution considered is a stretched exponential, whi… [Phys. Rev. E 92, 022102] Published Mon Aug 03, 2015

Schlagwort(e): Statistical Physics

Print ISSN: 1539-3755

Digitale ISSN: 1550-2376

Thema: Physik

Publiziert von American Physical Society (APS)

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Chaotic spin-spin entanglement on a recursive lattice (2015)

Levon Chakhmakhchyan, Stéphane Guérin, and Claude Leroy

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-04

Beschreibung: Author(s): Levon Chakhmakhchyan, Stéphane Guérin, and Claude Leroy We propose an exactly solvable multisite interaction spin-1/2 Ising-Heisenberg model on a triangulated Husimi lattice for the rigorous studies of chaotic entanglement. By making use of the generalized star-triangle transformation, we map the initial model onto an effective Ising one on a Husimi latt… [Phys. Rev. E 92, 022101] Published Mon Aug 03, 2015

Schlagwort(e): Statistical Physics

Print ISSN: 1539-3755

Digitale ISSN: 1550-2376

Thema: Physik

Publiziert von American Physical Society (APS)

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Nonlocality in uniaxially polarizable media (2015)

Maxim A. Gorlach and Pavel A. Belov

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-06

Beschreibung: Author(s): Maxim A. Gorlach and Pavel A. Belov We reveal extraordinary electromagnetic properties for a general class of uniaxially polarizable media. Depending on parameters, such metamaterials may have a wide range of nontrivial shapes of isofrequency contours including lemniscate, diamond, and multiply connected curves with connectivity numbe… [Phys. Rev. B 92, 085107] Published Tue Aug 04, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

Publiziert von American Physical Society (APS)

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Quantum heat baths satisfying the eigenstate thermalization hypothesis (2015)

O. Fialko

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-06

Beschreibung: Author(s): O. Fialko A class of autonomous quantum heat baths satisfying the eigenstate thermalization hypothesis (ETH) criteria is proposed. We show that such systems are expected to cause thermal relaxation of much smaller quantum systems coupled to one of the baths local observables. The process of thermalization is … [Phys. Rev. E 92, 022104] Published Wed Aug 05, 2015

Schlagwort(e): Statistical Physics

Print ISSN: 1539-3755

Digitale ISSN: 1550-2376

Thema: Physik

Publiziert von American Physical Society (APS)

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Femtosecond laser detection of Stark-decelerated and trapped methylfluoride molecules (2015)

Congsen Meng, Aernout P. P. van der Poel, Cunfeng Cheng, and Hendrick L. Bethlem

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): Congsen Meng, Aernout P. P. van der Poel, Cunfeng Cheng, and Hendrick L. Bethlem We demonstrate deceleration and trapping of methylfluoride ( CH 3 F ) molecules in the low-field-seeking component of the J = 1 , K = 1 state using a combination of a conventional Stark decelerator and a traveling wave decelerator. The methylfluoride molecules are detected by nonresonant multiphoton ionizatio… [Phys. Rev. A 92, 023404] Published Fri Aug 07, 2015

Schlagwort(e): Atomic and molecular processes in external fields, including interactions with strong fields and short pulses

Print ISSN: 1050-2947

Digitale ISSN: 1094-1622

Thema: Physik

Publiziert von American Physical Society (APS)

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Enhanced conduction and ferromagnetic order at (100)-type twin walls in La_{0.7} Sr_{0.3} MnO_{3} thin films (2015)

Lluís Balcells, Markos Paradinas, Núria Baguès, Neus Domingo, Roberto Moreno, Regina Galceran, Michael Walls, José Santiso, Zorica Konstantinovic, Alberto Pomar, Marie-Jo Casanove, Carmen Ocal, Benjamín Martínez, and Felip Sandiumenge

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): Lluís Balcells, Markos Paradinas, Núria Baguès, Neus Domingo, Roberto Moreno, Regina Galceran, Michael Walls, José Santiso, Zorica Konstantinovic, Alberto Pomar, Marie-Jo Casanove, Carmen Ocal, Benjamín Martínez, and Felip Sandiumenge There is increasing evidence supporting the strong potential of twin walls in ferroic materials as distinct, spatially tunable, functional elements in future electronic devices. Here, we report an increase of about one order of magnitude in conductivity and more robust magnetic interactions at (100)… [Phys. Rev. B 92, 075111] Published Fri Aug 07, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

Publiziert von American Physical Society (APS)

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Beyond the GW approximation: A second-order screened exchange correction (2015)

Xinguo Ren, Noa Marom, Fabio Caruso, Matthias Scheffler, and Patrick Rinke

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): Xinguo Ren, Noa Marom, Fabio Caruso, Matthias Scheffler, and Patrick Rinke Motivated by the recently developed renormalized second-order perturbation theory for ground-state energy calculations, we propose a second-order screened exchange correction (SOSEX) to the G W self-energy. This correction follows the spirit of the SOSEX correction to the random-phase approximation f… [Phys. Rev. B 92, 081104(R)] Published Fri Aug 07, 2015

Schlagwort(e): Electronic structure and strongly correlated systems

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

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