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Coherent quantum dynamics: What fluctuations can tell (2015)

John Schliemann

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): John Schliemann Coherent states provide a natural connection of quantum systems to their classical limit and are employed in various fields of physics. Here we derive general systematic expansions, with respect to quantum parameters, of expectation values of products of arbitrary operators within both oscillator co… [Phys. Rev. A 92, 022108] Published Mon Aug 10, 2015

Schlagwort(e): Fundamental concepts

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Thema: Physik

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Clauser-Horne Bell test with imperfect random inputs (2015)

Xiao Yuan, Qi Zhao, and Xiongfeng Ma

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Xiao Yuan, Qi Zhao, and Xiongfeng Ma The Bell test is one of the most important tools in quantum information science. On the one hand, it enables fundamental tests of the basic physics laws of nature, and on the other hand, it can also be applied in a variety of device-independent tasks such as quantum key distribution and random numbe… [Phys. Rev. A 92, 022107] Published Mon Aug 10, 2015

Schlagwort(e): Fundamental concepts

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Algebraic metrology: Nonoptimal but pretty good states and bounds (2015)

Michael Skotiniotis, Florian Fröwis, Wolfgang Dür, and Barbara Kraus

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Michael Skotiniotis, Florian Fröwis, Wolfgang Dür, and Barbara Kraus We investigate quantum metrology using a Lie algebraic approach for a class of Hamiltonians, including local and nearest-neighbor interaction Hamiltonians. Using this Lie algebraic formulation, we identify and construct highly symmetric states that admit Heisenberg scaling in precision for phase est… [Phys. Rev. A 92, 022323] Published Mon Aug 10, 2015

Schlagwort(e): Quantum information

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Relation between the Greenberger-Horne-Zeilinger–entanglement cost of preparing a multipartite pure state and its quantum discord (2015)

Seungho Yang and Hyunseok Jeong

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Seungho Yang and Hyunseok Jeong We investigate how much amount of Greenberger-Horne-Zeilinger (GHZ) entanglement is required in order to prepare a given multipartite state by local operations and classical communication (LOCC). We present a LOCC procedure that asymptotically converts GHZ states into an arbitrary multipartite pure … [Phys. Rev. A 92, 022322] Published Mon Aug 10, 2015

Schlagwort(e): Quantum information

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Universal holonomic quantum gates in decoherence-free subspace on superconducting circuits (2015)

Zheng-Yuan Xue, Jian Zhou, and Z. D. Wang

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Zheng-Yuan Xue, Jian Zhou, and Z. D. Wang To implement a set of universal quantum logic gates based on non-Abelian geometric phases, it is conventional wisdom that quantum systems beyond two levels are required, which is extremely difficult to fulfill for superconducting qubits and appears to be a main reason why only single-qubit gates wer… [Phys. Rev. A 92, 022320] Published Mon Aug 10, 2015

Schlagwort(e): Quantum information

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High-fidelity readout scheme for rare-earth solid-state quantum computing (2015)

A. Walther, L. Rippe, Y. Yan, J. Karlsson, D. Serrano, A. N. Nilsson, S. Bengtsson, and S. Kröll

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): A. Walther, L. Rippe, Y. Yan, J. Karlsson, D. Serrano, A. N. Nilsson, S. Bengtsson, and S. Kröll We propose and analyze a high-fidelity readout scheme for a single-instance approach to quantum computing in rare-earth-ion-doped crystals. The scheme is based on using different elements as qubit and readout ions, where the readout ions are doped into the material at a much lower concentration than… [Phys. Rev. A 92, 022319] Published Mon Aug 10, 2015

Schlagwort(e): Quantum information

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Spontaneous decay rate and Casimir-Polder potential of an atom near a lithographed surface (2015)

Robert Bennett

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Robert Bennett Radiative corrections to an atom are calculated near a half-space that has arbitrarily shaped small depositions upon its surface. The method is based on calculation of the classical Green's function of the macroscopic Maxwell equations near an arbitrarily perturbed half-space using a Born-series exp… [Phys. Rev. A 92, 022503] Published Mon Aug 10, 2015

Schlagwort(e): Atomic and molecular structure and dynamics

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s-wave scattering lengths of the strongly dipolar bosons ^{162} Dy and ^{164} Dy (2015)

Yijun Tang, Andrew Sykes, Nathaniel Q. Burdick, John L. Bohn, and Benjamin L. Lev

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Yijun Tang, Andrew Sykes, Nathaniel Q. Burdick, John L. Bohn, and Benjamin L. Lev We report the measurement of the deca-heptuplet s -partial-wave scattering length a of two bosonic isotopes of the highly magnetic element dysprosium: a = 112 ( 10 ) a 0 for Dy 162 and a = 92 ( 8 ) a 0 for Dy 164 , where a 0 is the Bohr radius. The scattering lengths are determined by the cross-dimensional relaxation … [Phys. Rev. A 92, 022703] Published Mon Aug 10, 2015

Schlagwort(e): Atomic and molecular collisions and interactions

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Real-time imaging of spin-to-orbital angular momentum hybrid remote state preparation (2015)

Manuel Erhard, Hammam Qassim, Harjaspreet Mand, Ebrahim Karimi, and Robert W. Boyd

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Manuel Erhard, Hammam Qassim, Harjaspreet Mand, Ebrahim Karimi, and Robert W. Boyd There exists two prominent methods to transfer information between two spatially separated parties, namely Alice ( A ) and Bob ( B ): quantum teleportation and remote state preparation. However, the difference between these methods is, in the teleportation scheme, the state to be transferred is complete… [Phys. Rev. A 92, 022321] Published Mon Aug 10, 2015

Schlagwort(e): Quantum information

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Optimal encoding capacity of a linear optical quantum channel (2015)

J. A. Smith, D. B. Uskov, and L. Kaplan

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): J. A. Smith, D. B. Uskov, and L. Kaplan Here, we study the classical information capacity of a quantum channel, assuming linear optical encoding, as a function of available photons and optical modes. We present a formula for general channel capacity and show that this capacity is achieved without requiring the use of entangling operations… [Phys. Rev. A 92, 022324] Published Mon Aug 10, 2015

Schlagwort(e): Quantum information

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11

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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

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12

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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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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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Suppressing systematic control errors to high orders (2015)

P. Bažant, H. Frydrych, G. Alber, and I. Jex

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): P. Bažant, H. Frydrych, G. Alber, and I. Jex Dynamical decoupling is a powerful method for protecting quantum information against unwanted interactions with the help of open-loop control pulses. Realistic control pulses are not ideal and may introduce additional systematic errors. We introduce a class of self-stabilizing pulse sequences capabl… [Phys. Rev. A 92, 022325] Published Mon Aug 10, 2015

Schlagwort(e): Quantum information

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15

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Double ionization in R-matrix theory using a two-electron outer region (2015)

Jack Wragg, J. S. Parker, and H. W. van der Hart

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Jack Wragg, J. S. Parker, and H. W. van der Hart We have developed a two-electron outer region for use within R -matrix theory to describe double ionization processes. The capability of this method is demonstrated for single-photon double ionization of He in the photon energy region between 80 and 180 eV. The cross sections are in agreement with es… [Phys. Rev. A 92, 022504] Published Mon Aug 10, 2015

Schlagwort(e): Atomic and molecular structure and dynamics

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Error suppression in Hamiltonian-based quantum computation using energy penalties (2015)

Adam D. Bookatz, Edward Farhi, and Leo Zhou

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Adam D. Bookatz, Edward Farhi, and Leo Zhou We consider the use of quantum error-detecting codes, together with energy penalties against leaving the code space, as a method for suppressing environmentally induced errors in Hamiltonian-based quantum computation. This method was introduced in Jordan et al. [ Phys. Rev. A 74 , 052322 (2006) ] in t… [Phys. Rev. A 92, 022317] Published Mon Aug 10, 2015

Schlagwort(e): Quantum information

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Ferromagnetic-nematic order and strongly correlated phases of fermions in optical flux lattices (2015)

Simon C. Davenport and Nigel R. Cooper

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Simon C. Davenport and Nigel R. Cooper We study a model of a two-dimensional ultracold atomic gas subjected to an “optical flux lattice”: a laser configuration where Raman-dressed atoms experience a strong artificial magnetic field. This leads to a band structure of narrow energy bands with nonzero Chern numbers. We consider the case of … [Phys. Rev. A 92, 023608] Published Mon Aug 10, 2015

Schlagwort(e): Matter waves and collective properties of cold atoms and molecules

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Enhanced stripe phases in spin-orbit-coupled Bose-Einstein condensates in ring cavities (2015)

Farokh Mivehvar and David L. Feder

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Farokh Mivehvar and David L. Feder The coupled dynamics of the atom and photon fields in optical ring cavities with two counterpropagating modes give rise to both spin-orbit interactions as well as long-ranged interactions between atoms of a many-body system. At zero temperature, the interplay between the two-body and cavity-mediated… [Phys. Rev. A 92, 023611] Published Mon Aug 10, 2015

Schlagwort(e): Matter waves and collective properties of cold atoms and molecules

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Triplet pair amplitude in a trapped s-wave superfluid Fermi gas with broken spin rotation symmetry (2015)

Yuki Endo, Daisuke Inotani, Ryo Hanai, and Yoji Ohashi

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Yuki Endo, Daisuke Inotani, Ryo Hanai, and Yoji Ohashi We investigate the possibility that the broken spatial inversion symmetry caused by a trap potential induces a spin-triplet Cooper pair amplitude in an s -wave superfluid Fermi gas. Based on symmetry considerations, we clarify that this phenomenon may occur, when a spin rotation symmetry of the syste… [Phys. Rev. A 92, 023610] Published Mon Aug 10, 2015

Schlagwort(e): Matter waves and collective properties of cold atoms and molecules

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Momentum-space Harper-Hofstadter model (2015)

Tomoki Ozawa, Hannah M. Price, and Iacopo Carusotto

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Tomoki Ozawa, Hannah M. Price, and Iacopo Carusotto We show how the weakly trapped Harper-Hofstadter model can be mapped onto a Harper-Hofstadter model in momentum space. In this momentum-space model, the band dispersion plays the role of the periodic potential, the Berry curvature plays the role of an effective magnetic field, the real-space harmoni… [Phys. Rev. A 92, 023609] Published Mon Aug 10, 2015

Schlagwort(e): Matter waves and collective properties of cold atoms and molecules

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21

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Polarization singularities in a sum-frequency light beam generated by a bichromatic singular beam in the bulk of an isotropic nonlinear chiral medium (2015)

K. S. Grigoriev, V. A. Makarov, and I. A. Perezhogin

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): K. S. Grigoriev, V. A. Makarov, and I. A. Perezhogin Expressions for the electric field at a sum frequency generated by a collinear elliptically polarized Gaussian beam and circularly polarized Laguerre-Gaussian beam in an isotropic chiral nonlinear medium are obtained in quadratures. The amount and locations of C points in the cross section of a sign… [Phys. Rev. A 92, 023814] Published Mon Aug 10, 2015

Schlagwort(e): Quantum optics, physics of lasers, nonlinear optics, classical optics

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22

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Dynamical many-body phases of the parametrically driven, dissipative Dicke model (2015)

R. Chitra and O. Zilberberg

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): R. Chitra and O. Zilberberg Control and manipulation of quantum engineered systems allows for the utilization of time-dependent parametric modulations for accessing novel out-of-equilibrium phenomena. In the absence of such driving, the dissipative Dicke model exhibits a fascinating out-of-equilibrium many-body phase transitio… [Phys. Rev. A 92, 023815] Published Mon Aug 10, 2015

Schlagwort(e): Quantum optics, physics of lasers, nonlinear optics, classical optics

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Light trapping above the light cone in a one-dimensional array of dielectric spheres (2015)

Evgeny N. Bulgakov and Almas F. Sadreev

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Evgeny N. Bulgakov and Almas F. Sadreev We demonstrate bound states in the first TE and TM diffraction continua (BSC) in a linear periodic array of dielectric spheres in air above the light cone. We classify the BSCs according to the symmetry specified by the azimuthal number m , the Bloch wave vector β directed along the array, and polari… [Phys. Rev. A 92, 023816] Published Mon Aug 10, 2015

Schlagwort(e): Quantum optics, physics of lasers, nonlinear optics, classical optics

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Phonon spectroscopy with sub-meV resolution by femtosecond x-ray diffuse scattering (2015)

Diling Zhu, Aymeric Robert, Tom Henighan, Henrik T. Lemke, Matthieu Chollet, J. Mike Glownia, David A. Reis, and Mariano Trigo

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Diling Zhu, Aymeric Robert, Tom Henighan, Henrik T. Lemke, Matthieu Chollet, J. Mike Glownia, David A. Reis, and Mariano Trigo We present a reconstruction of the transverse acoustic phonon dispersion of germanium from femtosecond time-resolved x-ray diffuse scattering measurements at the Linac Coherent Light Source. We demonstrate an energy resolution of 0.3 meV with a momentum resolution of 0.01 nm − 1 using 10-keV x rays wit… [Phys. Rev. B 92, 054303] Published Mon Aug 10, 2015

Schlagwort(e): Dynamics, dynamical systems, lattice effects

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

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Site dependence of the Kondo scale in CePd_{1−x} Rh_{x} due to Pd-Rh disorder (2015)

U. Stockert, S. Hartmann, M. Deppe, N. Caroca-Canales, J. G. Sereni, C. Geibel, and F. Steglich

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): U. Stockert, S. Hartmann, M. Deppe, N. Caroca-Canales, J. G. Sereni, C. Geibel, and F. Steglich We present measurements of the thermopower S ( T ) on CePd 1 − x Rh x between 2 K and 300 K. For low Rh content, the system behaves as a ferromagnetic Kondo system with a Curie temperature T C of about 6 K, a Kondo scale smaller than T C , and an overall crystal electric field splitting of 210 K. As the Rh con… [Phys. Rev. B 92, 054415] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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Torsion-induced effects in magnetic nanowires (2015)

Denis D. Sheka, Volodymyr P. Kravchuk, Kostiantyn V. Yershov, and Yuri Gaididei

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Denis D. Sheka, Volodymyr P. Kravchuk, Kostiantyn V. Yershov, and Yuri Gaididei A magnetic helix wire is one of the simplest magnetic systems which manifests properties of both curvature and torsion. Possible equilibrium magnetization states in the helix wire with different anisotropy directions are studied theoretically. There exist two equilibrium states in the helix wire wit… [Phys. Rev. B 92, 054417] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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Exchange bias effect in Au-Fe_{3} O_{4} dumbbell nanoparticles induced by the charge transfer from gold (2015)

Mikhail Feygenson, John C. Bauer, Zheng Gai, Carlos Marques, Meigan C. Aronson, Xiaowei Teng, Dong Su, Vesna Stanic, Volker S. Urban, Kevin A. Beyer, and Sheng Dai

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Mikhail Feygenson, John C. Bauer, Zheng Gai, Carlos Marques, Meigan C. Aronson, Xiaowei Teng, Dong Su, Vesna Stanic, Volker S. Urban, Kevin A. Beyer, and Sheng Dai We have studied the origin of the exchange bias effect in the Au-Fe 3 O 4 dumbbell nanoparticles in two samples with different sizes of the Au seed nanoparticles (4.1 and 2.7 nm) and same size of Fe 3 O 4 nanoparticles (9.8 nm). The magnetization, small-angle neutron-scattering, synchrotron x-ray diffract… [Phys. Rev. B 92, 054416] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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Large perpendicular magnetic anisotropy in magnetostrictive Fe_{1−x} Ga_{x} thin films (2015)

M. Barturen, J. Milano, M. Vásquez-Mansilla, C. Helman, M. A. Barral, A. M. Llois, M. Eddrief, and M. Marangolo

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): M. Barturen, J. Milano, M. Vásquez-Mansilla, C. Helman, M. A. Barral, A. M. Llois, M. Eddrief, and M. Marangolo In this work we report the appearance of a large perpendicular magnetic anisotropy (PMA) in Fe 1 − x Ga x thin films grown onto ZnSe/GaAs(001). This arising anisotropy is related to the tetragonal metastable phase in as-grown samples recently reported [M. Eddrief et al. , Phys. Rev. B 84 , 161410 (2011) ].… [Phys. Rev. B 92, 054418] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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Spin waves in one-dimensional bicomponent magnonic quasicrystals (2015)

J. Rychły, J. W. Kłos, M. Mruczkiewicz, and M. Krawczyk

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): J. Rychły, J. W. Kłos, M. Mruczkiewicz, and M. Krawczyk We studied a finite Fibonacci sequence of Co and Py stripes aligned side by side and in direct contact with each other. Calculations based on a continuous model, including exchange and dipole interactions, were performed for structures feasible for fabrication and characterization of the main proper… [Phys. Rev. B 92, 054414] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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Optical theorem for the conservation of electromagnetic helicity: Significance for molecular energy transfer and enantiomeric discrimination by circular dichroism (2015)

Manuel Nieto-Vesperinas

American Physical Society (APS)

In: Physical Review A

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Beschreibung: Author(s): Manuel Nieto-Vesperinas We put forward the physical meaning of the conservation equation for the helicity on scattering of an electromagnetic field with a generally magnetodielectric bi-isotropic dipolar object. This is the optical theorem for the helicity that, as we find, plays a role for this quantity analogous to that … [Phys. Rev. A 92, 023813] Published Mon Aug 10, 2015

Schlagwort(e): Quantum optics, physics of lasers, nonlinear optics, classical optics

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Architecture dependence of photon antibunching in cavity quantum electrodynamics (2015)

Matthew Bradford and Jung-Tsung Shen

American Physical Society (APS)

In: Physical Review A

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Beschreibung: Author(s): Matthew Bradford and Jung-Tsung Shen We investigate numerically the architecture dependence of the characteristics of antibunched photons generated in cavity quantum electrodynamic systems. We show that the quality of antibunching [the smallness of the second-order intensity correlation function at zero time g ( 2 ) ( 0 ) ] and the generation… [Phys. Rev. A 92, 023810] Published Mon Aug 10, 2015

Schlagwort(e): Quantum optics, physics of lasers, nonlinear optics, classical optics

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Magnetization dynamics of coupled ferromagnetic disks (2015)

Olle Heinonen

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Olle Heinonen The magnetization configuration in two stacked micron-size ferromagnetic disks can assume different equilibrium states depending on the interfacial coupling between the disks. Here I examine the magnetization dynamics in response to an out-of-plane field pulse for different equilibrium states. For a… [Phys. Rev. B 92, 054420] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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Broadband biphotons in a single spatial mode (2015)

K. G. Katamadze, N. A. Borshchevskaya, I. V. Dyakonov, A. V. Paterova, and S. P. Kulik

American Physical Society (APS)

In: Physical Review A

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Beschreibung: Author(s): K. G. Katamadze, N. A. Borshchevskaya, I. V. Dyakonov, A. V. Paterova, and S. P. Kulik We demonstrate the experimental technique for generating a spatial single-mode broadband biphoton field. The method is based on a dispersive optical element which precisely tailors the structure of the type-I spontaneous parametric down-conversion (SPDC) frequency angular spectrum in order to shift … [Phys. Rev. A 92, 023812] Published Mon Aug 10, 2015

Schlagwort(e): Quantum optics, physics of lasers, nonlinear optics, classical optics

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Anharmonic phonon quasiparticle theory of zero-point and thermal shifts in insulators: Heat capacity, bulk modulus, and thermal expansion (2015)

Philip B. Allen

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Philip B. Allen The quasiharmonic (QH) approximation uses harmonic vibrational frequencies ω Q , H ( V ) computed at volumes V near V 0 where the Born-Oppenheimer (BO) energy E el ( V ) is minimum. When this is used in the harmonic free energy, QH approximation gives a good zeroth order theory of thermal expansion and first-o… [Phys. Rev. B 92, 064106] Published Mon Aug 10, 2015

Schlagwort(e): Structure, structural phase transitions, mechanical properties, defects

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Single-photon level study of microwave properties of lithium niobate at millikelvin temperatures (2015)

Maxim Goryachev, Nikita Kostylev, and Michael E. Tobar

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Maxim Goryachev, Nikita Kostylev, and Michael E. Tobar The properties of doped and natural impurities in lithium niobate single crystals are studied using the whispering gallery mode method at low temperatures as a function of magnetic field. The study reveals considerable coupling of microwave photon modes to the Fe 3 + spin ensemble in iron-doped and no… [Phys. Rev. B 92, 060406(R)] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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Critical suppression of spin Seebeck effect by magnetic fields (2015)

Takashi Kikkawa, Ken-ichi Uchida, Shunsuke Daimon, Zhiyong Qiu, Yuki Shiomi, and Eiji Saitoh

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Takashi Kikkawa, Ken-ichi Uchida, Shunsuke Daimon, Zhiyong Qiu, Yuki Shiomi, and Eiji Saitoh The longitudinal spin Seebeck effect (LSSE) in Pt / Y 3 Fe 5 O 12 ( YIG ) junction systems has been investigated at various magnetic fields and temperatures. We found that the LSSE voltage in a Pt/YIG-slab system is suppressed by applying high magnetic fields and this suppression is critically enhanced at low… [Phys. Rev. B 92, 064413] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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Skyrmion dynamics in chiral ferromagnets (2015)

Stavros Komineas and Nikos Papanicolaou

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Stavros Komineas and Nikos Papanicolaou We study the dynamics of skyrmions in Dzyaloshinskii-Moriya materials with easy-axis anisotropy. An important link between topology and dynamics is established through the construction of unambiguous conservation laws obtained earlier in connection with magnetic bubbles and vortices. In particular, … [Phys. Rev. B 92, 064412] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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Mechanical cooling in single-photon optomechanics with quadratic nonlinearity (2015)

Wen-ju Gu, Zhen Yi, Li-hui Sun, and Da-hai Xu

American Physical Society (APS)

In: Physical Review A

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Beschreibung: Author(s): Wen-ju Gu, Zhen Yi, Li-hui Sun, and Da-hai Xu In the paper we study the nonlinear mechanical cooling processes in an intrinsic quadratically optomechanical coupling system without linearizing the optomechanical interaction. We apply scattering theory to calculate the transition rates between different mechanical Fock states using the resolvent … [Phys. Rev. A 92, 023811] Published Mon Aug 10, 2015

Schlagwort(e): Quantum optics, physics of lasers, nonlinear optics, classical optics

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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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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

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Physical realization of the generalized fully frustrated XY model in an array of SFS junctions (2015)

S. E. Korshunov

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): S. E. Korshunov We show that a physical realization of the phase diagram proposed by Minnhagen et al. [ Phys. Rev. B 78 , 184432 (2008) ] for the so-called generalized fully frustrated XY model on a square lattice can be achieved in arrays of superconductor-ferromagnet-superconductor junctions near the transition of t… [Phys. Rev. B 92, 064506] Published Mon Aug 10, 2015

Schlagwort(e): Superfluidity and superconductivity

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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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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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Boosting domain wall propagation by notches (2015)

H. Y. Yuan and X. R. Wang

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): H. Y. Yuan and X. R. Wang We report a counterintuitive finding that notches in an otherwise homogeneous magnetic nanowire can boost current-induced domain wall (DW) propagation. DW motion in notch-modulated wires can be classified into three phases: (1) A DW is pinned around a notch when the current density is below the depi… [Phys. Rev. B 92, 054419] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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Suppression of the impurity-induced local magnetism by the opening of a spin pseudogap in Ni-doped Sr_{2} CuO_{3} (2015)

Yannic Utz, Franziska Hammerath, Satoshi Nishimoto, Christian Hess, Neela Sekhar Beesetty, Romuald Saint-Martin, Alexandre Revcolevschi, Bernd Büchner, and Hans-Joachim Grafe

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Yannic Utz, Franziska Hammerath, Satoshi Nishimoto, Christian Hess, Neela Sekhar Beesetty, Romuald Saint-Martin, Alexandre Revcolevschi, Bernd Büchner, and Hans-Joachim Grafe The S = 1 / 2 antiferromagnetic Heisenberg spin chain compound Sr 2 CuO 3 doped with 1 % and 2 % of Ni impurities has been studied by means of Cu 63 nuclear magnetic resonance. A strong decrease of the spin-lattice relaxation rate T 1 − 1 at low temperatures points toward a spin gap, while a stretching exponent … [Phys. Rev. B 92, 060405(R)] Published Mon Aug 10, 2015

Schlagwort(e): Magnetism

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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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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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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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Fragile structural transition in Mo_{3} Sb_{7} (2015)

J.-Q. Yan, M. A. McGuire, A. F. May, D. Parker, D. G. Mandrus, and B. C. Sales

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): J.-Q. Yan, M. A. McGuire, A. F. May, D. Parker, D. G. Mandrus, and B. C. Sales Mo 3 Sb 7 single crystals lightly doped with Cr, Ru, or Te are studied in order to explore the interplay between superconductivity, magnetism, and the cubic-tetragonal structural transition. The structural transition at 53 K is extremely sensitive to Ru or Te substitution which introduces additional el… [Phys. Rev. B 92, 064507] Published Mon Aug 10, 2015

Schlagwort(e): Superfluidity and superconductivity

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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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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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Direct surface charging and alkali-metal doping for tuning the interlayer magnetic order in planar nanostructures (2015)

Tamene R. Dasa and Valeri S. Stepanyuk

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Tamene R. Dasa and Valeri S. Stepanyuk The continuous reduction of magnetic units to ultrasmall length scales inspires efforts to look for a suitable means of controlling magnetic states. In this study, we show two surface charge alteration techniques for tuning the interlayer exchange coupling of ferromagnetic layers separated by parama… [Phys. Rev. B 92, 075412] Published Mon Aug 10, 2015

Schlagwort(e): Surface physics, nanoscale physics, low-dimensional systems

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TiS_{3} nanoribbons: Width-independent band gap and strain-tunable electronic properties (2015)

Jun Kang, Hasan Sahin, H. Duygu Ozaydin, R. Tugrul Senger, and François M. Peeters

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Jun Kang, Hasan Sahin, H. Duygu Ozaydin, R. Tugrul Senger, and François M. Peeters The electronic properties, carrier mobility, and strain response of TiS 3 nanoribbons ( TiS 3 NRs) are investigated by first-principles calculations. We found that the electronic properties of TiS 3 NRs strongly depend on the edge type ( a or b ). All a - TiS 3 NRs are metallic with a magnetic ground state, … [Phys. Rev. B 92, 075413] Published Mon Aug 10, 2015

Schlagwort(e): Surface physics, nanoscale physics, low-dimensional 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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Topological nodal line semimetals with and without spin-orbital coupling (2015)

Chen Fang, Yige Chen, Hae-Young Kee, and Liang Fu

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Chen Fang, Yige Chen, Hae-Young Kee, and Liang Fu We theoretically study three-dimensional topological semimetals (TSMs) with nodal lines protected by crystalline symmetries. Compared to TSMs with point nodes, e.g., Weyl semimetals and Dirac semimetals, where the conduction and the valence bands touch at discrete points, in these TSMs the two bands… [Phys. Rev. B 92, 081201(R)] Published Mon Aug 10, 2015

Schlagwort(e): Semiconductors I: bulk

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Nonlocal transport via edge states in InAs/GaSb coupled quantum wells (2015)

Susanne Mueller, Atindra Nath Pal, Matija Karalic, Thomas Tschirky, Christophe Charpentier, Werner Wegscheider, Klaus Ensslin, and Thomas Ihn

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Susanne Mueller, Atindra Nath Pal, Matija Karalic, Thomas Tschirky, Christophe Charpentier, Werner Wegscheider, Klaus Ensslin, and Thomas Ihn We have investigated low-temperature electronic transport on InAs/GaSb double quantum wells, a system which promises to be electrically tunable from a normal to a topological insulator. Hall bars of 50 μ m in length down to a few micrometers gradually develop a pronounced resistance plateau near charg… [Phys. Rev. B 92, 081303(R)] Published Mon Aug 10, 2015

Schlagwort(e): Semiconductors II: surfaces, interfaces, microstructures, and related topics

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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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Confinement of spin-orbit induced Dirac states in quantum point contacts (2015)

Tommy Li

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Tommy Li The quantum transmission problem for a particle moving in a quantum point contact in the presence of a Rashba spin-orbit interaction and applied magnetic field is solved semiclassically. A strong Rashba interaction and parallel magnetic field form emergent Dirac states at the center of the constrict… [Phys. Rev. B 92, 085302] Published Mon Aug 10, 2015

Schlagwort(e): Semiconductors II: surfaces, interfaces, microstructures, and related topics

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Giant spin-orbit-induced spin splitting in Bi zigzag chains on GaAs(110) (2015)

Hyun-Jung Kim and Jun-Hyung Cho

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Hyun-Jung Kim and Jun-Hyung Cho The search for one-dimensional electron systems with a giant Rashba-type spin splitting is of importance for the application of spin transport. Here we report, based on a first-principles density-functional-theory calculation, that Bi zigzag chains formed on a heterogeneous GaAs(110) surface have a … [Phys. Rev. B 92, 085303] Published Mon Aug 10, 2015

Schlagwort(e): Semiconductors II: surfaces, interfaces, microstructures, and related topics

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Real-space imaging of nanotip plasmons using electron energy loss spectroscopy (2015)

Benjamin Schröder, Thorsten Weber, Sergey V. Yalunin, Thomas Kiel, Christian Matyssek, Murat Sivis, Sascha Schäfer, Felix von Cube, Stephan Irsen, Kurt Busch, Claus Ropers, and Stefan Linden

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Benjamin Schröder, Thorsten Weber, Sergey V. Yalunin, Thomas Kiel, Christian Matyssek, Murat Sivis, Sascha Schäfer, Felix von Cube, Stephan Irsen, Kurt Busch, Claus Ropers, and Stefan Linden We report the spatial mapping of surface plasmons on conical gold nanotips by electron energy loss spectroscopy. We observe standing-wave patterns resulting from reflections of the fundamental surface-plasmon mode at the nanotip apex. The experimental results are in very good agreement with numerica… [Phys. Rev. B 92, 085411] Published Mon Aug 10, 2015

Schlagwort(e): Surface physics, nanoscale physics, low-dimensional systems

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Positive-parity rotational band in ^{158} Tb (2015)

J. Zhong, H. L. Ma, S. P. Hu, X. G. Wu, H. B. Sun, G. S. Li, C. Y. He, Y. Zheng, C. B. Li, Q. M. Chen, H. W. Li, Y. H. Wu, and P. W. Luo

American Physical Society (APS)

In: Physical Review C

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Beschreibung: Author(s): J. Zhong, H. L. Ma, S. P. Hu, X. G. Wu, H. B. Sun, G. S. Li, C. Y. He, Y. Zheng, C. B. Li, Q. M. Chen, H. W. Li, Y. H. Wu, and P. W. Luo Excited states of the odd-odd nucleus Tb 158 have been studied via the Sm 154 ( Li 7 , 3 n ) Tb 158 reaction at a beam energy of 27 MeV. The new level scheme of Tb 158 involving a positive parity rotational band is established up to excitation energy ∼ 2.3 MeV and spin ∼ 17 ℏ . By comparing with the rotational bands… [Phys. Rev. C 92, 024308] Published Mon Aug 10, 2015

Schlagwort(e): Nuclear Structure

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Variational polaron self-interaction-corrected total-energy functional for charge excitations in insulators (2015)

Babak Sadigh, Paul Erhart, and Daniel Åberg

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Babak Sadigh, Paul Erhart, and Daniel Åberg We conduct a detailed investigation of the polaron self-interaction (pSI) error in standard approximations to the exchange-correlation (XC) functional within density-functional theory (DFT). The pSI leads to delocalization error in the polaron wave function and energy, as calculated from the Kohn-Sh… [Phys. Rev. B 92, 075202] Published Mon Aug 10, 2015

Schlagwort(e): Semiconductors I: bulk

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Velocity-dependent transverse momentum distribution of fragments produced from ^{40} Ar+ ^{9} Be at 95 MeV/nucleon (2015)

S. Momota, I. Tanihata, A. Ozawa, M. Notani, K. Yoshida, K. Morimoto, T. Yamaguchi, T. Onishi, A. Yoshida, Y. X. Watanabe, Z. Liu, and A. Ono

American Physical Society (APS)

In: Physical Review C

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): S. Momota, I. Tanihata, A. Ozawa, M. Notani, K. Yoshida, K. Morimoto, T. Yamaguchi, T. Onishi, A. Yoshida, Y. X. Watanabe, Z. Liu, and A. Ono Transverse momentum ( P T ) distributions of projectilelike fragments produced at intermediate energy are investigated. P T distributions of fragments with mass A F = 10 – 37 , produced from an Ar 40 beam with E = 95 MeV / nucleon and a Be target, are observed as a function of fragment velocity by using the Rikagak… [Phys. Rev. C 92, 024608] Published Mon Aug 10, 2015

Schlagwort(e): Nuclear Reactions

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Size-dependent line broadening in the emission spectra of single GaAs quantum dots: Impact of surface charge on spectral diffusion (2015)

Neul Ha, Takaaki Mano, Ying-Lin Chou, Yu-Nien Wu, Shun-Jen Cheng, Juanita Bocquel, Paul M. Koenraad, Akihiro Ohtake, Yoshiki Sakuma, Kazuaki Sakoda, and Takashi Kuroda

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Neul Ha, Takaaki Mano, Ying-Lin Chou, Yu-Nien Wu, Shun-Jen Cheng, Juanita Bocquel, Paul M. Koenraad, Akihiro Ohtake, Yoshiki Sakuma, Kazuaki Sakoda, and Takashi Kuroda Making use of droplet epitaxy, we systematically controlled the height of self-assembled GaAs quantum dots by more than one order of magnitude. The photoluminescence spectra of single quantum dots revealed the strong dependence of the spectral linewidth on the dot height. Tall dots with a height of … [Phys. Rev. B 92, 075306] Published Mon Aug 10, 2015

Schlagwort(e): Semiconductors II: surfaces, interfaces, microstructures, and related topics

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Centrality dependence of mapping the hydrodynamic response to the initial geometry in heavy-ion collisions (2015)

Jinghua Fu

American Physical Society (APS)

In: Physical Review C

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Beschreibung: Author(s): Jinghua Fu Event-by-event correlations between v n and ɛ m , n for different collision centralities are studied with hydrodynamics. For the more central collisions v n is better correlated with ɛ m , n defined with relatively larger radial weight power m , like m = n + 1 . For the more peripheral collisions, v n prefers ɛ m , n … [Phys. Rev. C 92, 024904] Published Mon Aug 10, 2015

Schlagwort(e): Relativistic Nuclear Collisions

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Differential Hanbury-Brown–Twiss approach for an exact hydrodynamic model with rotation (2015)

S. Velle and L. P. Csernai

American Physical Society (APS)

In: Physical Review C

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Beschreibung: Author(s): S. Velle and L. P. Csernai We study an exact rotating and expanding solution of the fluid dynamical model of heavy ion reactions, that take into account the rate of slowing down of the rotation due to the longitudinal and transverse expansion of the system. The parameters of the model are set on the basis of realistic 3+1D fl… [Phys. Rev. C 92, 024905] Published Mon Aug 10, 2015

Schlagwort(e): Relativistic Nuclear Collisions

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Invisible K_{L} decays as a probe of new physics (2015)

S. N. Gninenko and N. V. Krasnikov

American Physical Society (APS)

In: Physical Review D

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Beschreibung: Author(s): S. N. Gninenko and N. V. Krasnikov The decay K L → invisible has never been experimentally tested. In the Standard Model (SM), its branching ratio for the decay into two neutrinos is helicity suppressed and predicted to be Br ( K L → ν ν ¯ ) ≲ 10 − 10 . We consider several natural extensions of the SM, such as two-Higgs-doublet (2HDM), 2HDM and ligh… [Phys. Rev. D 92, 034009] Published Mon Aug 10, 2015

Schlagwort(e): Strong Interactions

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Topology beyond the horizon: How far can it be probed? (2015)

Ophélia Fabre, Simon Prunet, and Jean-Philippe Uzan

American Physical Society (APS)

In: Physical Review D

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Beschreibung: Author(s): Ophélia Fabre, Simon Prunet, and Jean-Philippe Uzan The standard cosmological model does not determine the spatial topology of the Universe. This article revisits the signature of a nontrivial topology on the properties of the cosmic microwave background anisotropies. We show that the correlation function of the coefficients of the expansion of the t… [Phys. Rev. D 92, 043003] Published Mon Aug 10, 2015

Schlagwort(e): Astrophysics

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Lepton mixing in gauge models (2015)

D. Falcone and L. Oliver

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): D. Falcone and L. Oliver We reexamine lepton mixing in gauge models by considering two theories within the type I seesaw mechanism, the extended Standard Model, i.e. S U ( 2 ) L × U ( 1 ) Y with singlet right-handed heavy neutrinos, and the left-right model, S U ( 2 ) L × S U ( 2 ) R × U ( 1 ) B − L . The former is often used as a simple heuristic approac… [Phys. Rev. D 92, 033004] Published Mon Aug 10, 2015

Schlagwort(e): Electroweak Interactions

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OH-terminated two-dimensional transition metal carbides and nitrides as ultralow work function materials (2015)

Mohammad Khazaei, Masao Arai, Taizo Sasaki, Ahmad Ranjbar, Yunye Liang, and Seiji Yunoki

American Physical Society (APS)

In: Physical Review B

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Beschreibung: Author(s): Mohammad Khazaei, Masao Arai, Taizo Sasaki, Ahmad Ranjbar, Yunye Liang, and Seiji Yunoki MXenes are a set of two-dimensional transition metal carbides and nitrides that offer many potential applications in energy storage and electronic devices. As an important parameter to design new electronic devices, we investigate the work functions of bare MXenes and their functionalized ones with … [Phys. Rev. B 92, 075411] Published Mon Aug 10, 2015

Schlagwort(e): Surface physics, nanoscale physics, low-dimensional systems

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Lifetime measurement for the possible antimagnetic rotation band in ^{101} Pd (2015)

M. Sugawara, T. Hayakawa, M. Oshima, Y. Toh, A. Osa, M. Matsuda, T. Shizuma, Y. Hatsukawa, H. Kusakari, T. Morikawa, Z. G. Gan, and T. Czosnyka

American Physical Society (APS)

In: Physical Review C

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): M. Sugawara, T. Hayakawa, M. Oshima, Y. Toh, A. Osa, M. Matsuda, T. Shizuma, Y. Hatsukawa, H. Kusakari, T. Morikawa, Z. G. Gan, and T. Czosnyka Lifetime measurements were made for the ν h 11 / 2 band in Pd 101 , which had been interpreted as a possible antimagnetic rotation band based on the comparison of I − ω behavior with the calculation of a semiclassical particle-rotor model in our previous study. Doppler broadened line shapes were analyzed fo… [Phys. Rev. C 92, 024309] Published Mon Aug 10, 2015

Schlagwort(e): Nuclear Structure

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Grand unification and exotic fermions (2015)

Robert P. Feger and Thomas W. Kephart

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Robert P. Feger and Thomas W. Kephart We exploit the recently developed software package LieART to show that SU ( N ) grand unified theories with chiral fermions in mixed tensor irreducible representations can lead to standard model chiral fermions without additional light exotic chiral fermions; i.e., only standard model fermions are ligh… [Phys. Rev. D 92, 035005] Published Mon Aug 10, 2015

Schlagwort(e): Beyond the Standard Model

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Spherically symmetric solution of f(R,G) gravity at low energy (2015)

Bofeng Wu and Bo-Qiang Ma

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Bofeng Wu and Bo-Qiang Ma The weak-field and slow-motion limit of f ( R , G ) gravity is developed up to ( v / c ) 4 order in a spherically symmetric background. Considering the Taylor expansion of a general function f around vanishing values of R and G , we present general vacuum solutions up to ( v / c ) 4 order for the gravitational fiel… [Phys. Rev. D 92, 044012] Published Mon Aug 10, 2015

Schlagwort(e): General Relativity and Gravitation

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Reaction-diffusion processes on interconnected scale-free networks (2015)

Antonios Garas

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Antonios Garas We study the two-particle annihilation reaction A + B → ∅ on interconnected scale-free networks, using different interconnecting strategies. We explore how the mixing of particles and the process evolution are influenced by the number of interconnecting links, by their functional properties, and by the … [Phys. Rev. E 92, 020801(R)] Published Mon Aug 10, 2015

Schlagwort(e): Networks and Interdisciplinary Physics

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B→Dℓν form factors at nonzero recoil and |V_{cb} | from 2+1-flavor lattice QCD (2015)

Jon A. Bailey, A. Bazavov, C. Bernard, C. M. Bouchard, C. De; Tar, Daping Du, A. X. El-Khadra, J. Foley, E. D. Freeland, E. Gámiz, Steven Gottlieb, U. M. Heller, J. Komijani, A. S. Kronfeld, J. Laiho, L. Levkova, P. B. Mackenzie, E. T. Neil, Si-Wei Qiu, J. Simone, R. Sugar, D. Toussaint, R. S. Van de Water, and Ran Zhou (Fermilab Lattice and MILC Collaborations)

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Jon A. Bailey, A. Bazavov, C. Bernard, C. M. Bouchard, C. DeTar, Daping Du, A. X. El-Khadra, J. Foley, E. D. Freeland, E. Gámiz, Steven Gottlieb, U. M. Heller, J. Komijani, A. S. Kronfeld, J. Laiho, L. Levkova, P. B. Mackenzie, E. T. Neil, Si-Wei Qiu, J. Simone, R. Sugar, D. Toussaint, R. S. Van de Water, and Ran Zhou (Fermilab Lattice and MILC Collaborations) We present the first unquenched lattice-QCD calculation of the hadronic form factors for the exclusive decay B ¯ → D ℓ ν ¯ at nonzero recoil. We carry out numerical simulations on 14 ensembles of gauge-field configurations generated with 2 + 1 flavors of asqtad-improved staggered sea quarks. The ensembles e… [Phys. Rev. D 92, 034506] Published Mon Aug 10, 2015

Schlagwort(e): Lattice Methods

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Josephson instantons and Josephson monopoles in a non-Abelian Josephson junction (2015)

Muneto Nitta

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Muneto Nitta The non-Abelian Josephson junction is a junction of non-Abelian color superconductors sandwiching an insulator, or a non-Abelian domain wall if flexible, whose low-energy dynamics is described by a U ( N ) principal chiral model with the conventional pion mass. A non-Abelian Josephson vortex is a non-A… [Phys. Rev. D 92, 045010] Published Mon Aug 10, 2015

Schlagwort(e): Field Theory, Formal Particle Theory

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Resistive thrust production can be as crucial as added mass mechanisms for inertial undulatory swimmers (2015)

M. Piñeirua, R. Godoy-Diana, and B. Thiria

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): M. Piñeirua, R. Godoy-Diana, and B. Thiria In this Rapid Communication, we address a crucial point regarding the description of moderate to high Reynolds numbers aquatic swimmers. For decades, swimming animals have been classified in two different families of propulsive mechanisms based on the Reynolds number: the resistive swimmers, using l… [Phys. Rev. E 92, 021001(R)] Published Mon Aug 10, 2015

Schlagwort(e): Fluid Dynamics

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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

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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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Experimental Observation of Quasicrystal Growth (2015)

Keisuke Nagao, Tomoaki Inuzuka, Kazue Nishimoto, and Keiichi Edagawa

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Keisuke Nagao, Tomoaki Inuzuka, Kazue Nishimoto, and Keiichi Edagawa In situ high-resolution transmission electron microscopy has been used to spot quasicrystals in the act of growing. [Phys. Rev. Lett. 115, 075501] Published Mon Aug 10, 2015

Schlagwort(e): Condensed Matter: Structure, etc.

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Analytic Flow Equations for the Fermi Liquid Parameters of the Anderson Impurity Model (2015)

Vassilis Pandis and Alex C. Hewson

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Vassilis Pandis and Alex C. Hewson The low temperature behavior of a Fermi liquid can be described in terms of quasiparticle excitations that are in 1-1 correspondence with those of the noninteracting system. Because of adiabatic continuity, the Landau parameters, which describe the interactions between the quasiparticles, must evolv… [Phys. Rev. Lett. 115, 076401] Published Mon Aug 10, 2015

Schlagwort(e): Condensed Matter: Electronic Properties, etc.

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Electronic structure of Mu-complex donor state in rutile TiO_{2} (2015)

K. Shimomura, R. Kadono, A. Koda, K. Nishiyama, and M. Mihara

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): K. Shimomura, R. Kadono, A. Koda, K. Nishiyama, and M. Mihara The hyperfine structure of the interstitial muonium (Mu) in rutile ( TiO 2 , weakly n -type) has been identified by means of a muon-spin-rotation technique. The angle-resolved hyperfine parameters exhibit a tetragonal anisotropy within the a b plane and axial anisotropy with respect to the 〈 001 〉 ( c ̂ ) axi… [Phys. Rev. B 92, 075203] Published Tue Aug 11, 2015

Schlagwort(e): Semiconductors I: bulk

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Thema: Physik

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First-principles embedded-cluster calculations of the neutral and charged oxygen vacancy at the rutile TiO_{2} (110) surface (2015)

Daniel Berger, Harald Oberhofer, and Karsten Reuter

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): Daniel Berger, Harald Oberhofer, and Karsten Reuter We perform full-potential screened-hybrid density-functional theory calculations to compare the thermodynamic stability of neutral and charged states of the surface oxygen vacancy at the rutile TiO 2 (110) surface. Solid-state (QM/MM) embedded-cluster calculations are employed to account for the stron… [Phys. Rev. B 92, 075308] Published Tue Aug 11, 2015

Schlagwort(e): Semiconductors II: surfaces, interfaces, microstructures, and related topics

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Phonon-limited carrier mobility and resistivity from carbon nanotubes to graphene (2015)

Jing Li, Henrique Pereira Coutada Miranda, Yann-Michel Niquet, Luigi Genovese, Ivan Duchemin, Ludger Wirtz, and Christophe Delerue

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): Jing Li, Henrique Pereira Coutada Miranda, Yann-Michel Niquet, Luigi Genovese, Ivan Duchemin, Ludger Wirtz, and Christophe Delerue Under which conditions do the electrical transport properties of one-dimensional (1D) carbon nanotubes (CNTs) and 2D graphene become equivalent? We have performed atomistic calculations of the phonon-limited electrical mobility in graphene and in a wide range of CNTs of different types to address th… [Phys. Rev. B 92, 075414] Published Tue Aug 11, 2015

Schlagwort(e): Surface physics, nanoscale physics, low-dimensional systems

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Spin-orbit interaction, spin-phonon coupling, and anisotropy in the giant magnetoelastic effect in YMnO_{3} (2015)

Arpita Paul, Priya Sharma, and Umesh V. Waghmare

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): Arpita Paul, Priya Sharma, and Umesh V. Waghmare From the energies of various noncollinearly ordered spin configurations of YMnO 3 obtained using first-principles density functional theory and spin-orbit coupling, we demonstrate a remarkable magnetocrystalline anisotropy in the ordering of spins of Mn 3 + ions. We find that these spins are confined i… [Phys. Rev. B 92, 054106] Published Tue Aug 11, 2015

Schlagwort(e): Structure, structural phase transitions, mechanical properties, defects

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Electromagnetically-induced-transparency-related phenomena and their mechanical analogs (2015)

J. A. Souza, L. Cabral, R. R. Oliveira, and C. J. Villas-Boas

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): J. A. Souza, L. Cabral, R. R. Oliveira, and C. J. Villas-Boas Systems of interacting classical harmonic oscillators have received considerable attention in the past years as analog models for describing electromagnetically induced transparency (EIT) and associated phenomena. We review these models and investigate their validity for a variety of physical system… [Phys. Rev. A 92, 023818] Published Tue Aug 11, 2015

Schlagwort(e): Quantum optics, physics of lasers, nonlinear optics, classical optics

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Thema: Physik

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Analysis of proton + ^{12} C scattering by microscopic coupled-channels calculations (2015)

M. Tomita, M. Iwasaki, R. Otani, K. Horio, and M. Ito

American Physical Society (APS)

In: Physical Review C

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Beschreibung: Author(s): M. Tomita, M. Iwasaki, R. Otani, K. Horio, and M. Ito The microscopic coupled-channel (MCC) calculations for proton + C 12 inelastic scattering are performed in the energy range of E p = 29.95 to 65 MeV. The nuclear interactions for the proton- C 12 system are constructed from the folding model, which employs the internal wave function of C 12 , obtained from t… [Phys. Rev. C 92, 024609] Published Tue Aug 11, 2015

Schlagwort(e): Nuclear Reactions

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Intrinsic curvature of thermodynamic potentials for black holes with critical points (2015)

Brian P. Dolan

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): Brian P. Dolan The geometry of thermodynamic state space is studied for asymptotically anti–de Sitter black holes in D -dimensional space-times. Convexity of thermodynamic potentials and the analytic structure of the response functions is analyzed. The thermodynamic potentials can be used to define a metric on the … [Phys. Rev. D 92, 044013] Published Tue Aug 11, 2015

Schlagwort(e): General Relativity and Gravitation

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Quark-gluon vertex from the Landau gauge Curci-Ferrari model (2015)

Marcela Peláez, Matthieu Tissier, and Nicolás Wschebor

American Physical Society (APS)

In: Physical Review D

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Beschreibung: Author(s): Marcela Peláez, Matthieu Tissier, and Nicolás Wschebor We investigate the quark-gluon three-point correlation function within a one-loop computation performed in the Curci-Ferrari massive extension of the Faddeev-Popov gauge-fixed action. The mass term is used as a minimal way for taking into account the influence of the Gribov ambiguity. Our results, w… [Phys. Rev. D 92, 045012] Published Tue Aug 11, 2015

Schlagwort(e): Field Theory, Formal Particle Theory

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B [over ¯] ^{0} decay into D^{0} and f_{0} (500), f_{0} (980), a_{0} (980), ρ and B [over ¯] _{s}^{0} decay into D^{0} and κ(800), K^{*0} (2015)

Wei-Hong Liang, Ju-Jun Xie, and E. Oset

American Physical Society (APS)

In: Physical Review D

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Beschreibung: Author(s): Wei-Hong Liang, Ju-Jun Xie, and E. Oset We make predictions for ratios of branching fractions of B ¯ 0 decays into D 0 and the scalar mesons f 0 ( 500 ) , f 0 ( 980 ) , a 0 ( 980 ) , plus B ¯ s 0 decay into D 0 and κ ( 800 ) . We also compare the π + π − production in the scalar channel with that observed in the ρ channel and make predictions for the B ¯ s 0 decay into … [Phys. Rev. D 92, 034008] Published Mon Aug 10, 2015

Schlagwort(e): Strong Interactions

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Some properties of U(1) gauged Q-balls (2015)

I. E. Gulamov, E. Ya. Nugaev, A. G. Panin, and M. N. Smolyakov

American Physical Society (APS)

In: Physical Review D

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Beschreibung: Author(s): I. E. Gulamov, E. Ya. Nugaev, A. G. Panin, and M. N. Smolyakov In this paper we examine the properties of U ( 1 ) gauged Q -balls in two models with different scalar field potentials. The obtained results demonstrate that in the general case U ( 1 ) gauged Q -balls possess properties, which differ considerably from those of Q -balls in the nongauged case with the same f… [Phys. Rev. D 92, 045011] Published Mon Aug 10, 2015

Schlagwort(e): Field Theory, Formal Particle Theory

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Conditions for positioning of nucleosomes on DNA (2015)

Michael Sheinman and Ho-Ryun Chung

American Physical Society (APS)

In: Physical Review E

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Beschreibung: Author(s): Michael Sheinman and Ho-Ryun Chung Positioning of nucleosomes along a eukaryotic genome plays an important role in its organization and regulation. There are many different factors affecting the location of nucleosomes. Some can be viewed as preferential binding of a single nucleosome to different locations along the DNA and some as … [Phys. Rev. E 92, 022704] Published Tue Aug 11, 2015

Schlagwort(e): Biological Physics

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Modeling the flow in diffuse interface methods of solidification (2015)

A. Subhedar, I. Steinbach, and F. Varnik

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): A. Subhedar, I. Steinbach, and F. Varnik Fluid dynamical equations in the presence of a diffuse solid-liquid interface are investigated via a volume averaging approach. The resulting equations exhibit the same structure as the standard Navier-Stokes equation for a Newtonian fluid with a constant viscosity, the effect of the solid phase fra… [Phys. Rev. E 92, 023303] Published Tue Aug 11, 2015

Schlagwort(e): Computational Physics

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Ladder Climbing and Autoresonant Acceleration of Plasma Waves (2015)

I. Barth, I. Y. Dodin, and N. J. Fisch

American Physical Society (APS)

In: Physical Review Letters

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Beschreibung: Author(s): I. Barth, I. Y. Dodin, and N. J. Fisch When the background density in a bounded plasma is modulated in time, discrete modes become coupled. Interestingly, for appropriately chosen modulations, the average plasmon energy might be made to grow in a ladderlike manner, achieving upconversion or downconversion of the plasmon energy. This reve… [Phys. Rev. Lett. 115, 075001] Published Tue Aug 11, 2015

Schlagwort(e): Plasma and Beam Physics

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Quantum Spin Liquid Emerging from Antiferromagnetic Order by Introducing Disorder (2015)

T. Furukawa, K. Miyagawa, T. Itou, M. Ito, H. Taniguchi, M. Saito, S. Iguchi, T. Sasaki, and K. Kanoda

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): T. Furukawa, K. Miyagawa, T. Itou, M. Ito, H. Taniguchi, M. Saito, S. Iguchi, T. Sasaki, and K. Kanoda Quantum spin liquids, which are spin versions of quantum matter, have been sought after in systems with geometrical frustration. We show that disorder drives a classical magnet into a quantum spin liquid through conducting NMR experiments on an organic Mott insulator, κ − ( ET ) 2 Cu [ N ( CN ) 2 ] Cl . Antiferrom… [Phys. Rev. Lett. 115, 077001] Published Tue Aug 11, 2015

Schlagwort(e): Condensed Matter: Electronic Properties, etc.

Print ISSN: 0031-9007

Digitale ISSN: 1079-7114

Thema: Physik

Publiziert von American Physical Society (APS)

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Confinement Induced Plastic Crystal-to-Crystal Transitions in Rodlike Particles with Long-Ranged Repulsion (2015)

Bing Liu, Thijs H. Besseling, Alfons van Blaaderen, and Arnout Imhof

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): Bing Liu, Thijs H. Besseling, Alfons van Blaaderen, and Arnout Imhof Rod-shaped particles in a liquid arrange into a variety of structures when subjected to confining walls, an effect that might be used to design optical materials. [Phys. Rev. Lett. 115, 078301] Published Tue Aug 11, 2015

Schlagwort(e): Polymer, Soft Matter, Biological, and Interdisciplinary Physics

Print ISSN: 0031-9007

Digitale ISSN: 1079-7114

Thema: Physik

Publiziert von American Physical Society (APS)

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Synopsis: Wedged Particles Make Crystals (2015)

American Physical Society (APS)

In: Physics

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Publikationsdatum: 2015-08-12

Beschreibung: Rod-shaped particles in a liquid arrange into a variety of structures when subjected to confining walls, an effect that might be used to design optical materials. [Physics] Published Tue Aug 11, 2015

Digitale ISSN: 1539-0748

Thema: Physik

Publiziert von American Physical Society (APS)

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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

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

Publiziert von American Physical Society (APS)

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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

Print ISSN: 1050-2947

Digitale ISSN: 1094-1622

Thema: Physik

Publiziert von American Physical Society (APS)

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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

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

Publiziert von American Physical Society (APS)

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