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Majorana corner states in a two-dimensional magnetic topological insulator on a high-temperature superconductor (2018)

Tao Liu, James Jun He, and Franco Nori (野理)

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-14

Beschreibung: Author(s): Tao Liu, James Jun He, and Franco Nori (野理) Conventional n -dimensional topological superconductors (TSCs) have protected gapless ( n − 1 ) -dimensional boundary states. In contrast to this, second-order TSCs are characterized by topologically protected gapless ( n − 2 ) -dimensional states with the usual gapped ( n − 1 ) boundaries. Here, we study a second... [Phys. Rev. B 98, 245413] Published Thu Dec 13, 2018

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

Print ISSN: 1098-0121

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Thema: Physik

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Path integral approach to random neural networks (2018)

A. Crisanti and H. Sompolinksy

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-14

Beschreibung: Author(s): A. Crisanti and H. Sompolinksy In this work we study of the dynamics of large-size random neural networks. Different methods have been developed to analyze their behavior, and most of them rely on heuristic methods based on Gaussian assumptions regarding the fluctuations in the limit of infinite sizes. These approaches, however, ... [Phys. Rev. E 98, 062120] Published Thu Dec 13, 2018

Schlagwort(e): Statistical Physics

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Thema: Physik

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Thermal decay of a metastable state: Influence of rescattering on the quasistationary dynamical rate (2018)

M. V. Chushnyakova and I. I. Gontchar

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-03-13

Beschreibung: Author(s): M. V. Chushnyakova and I. I. Gontchar We study the effect of backscattering of the Brownian particles as they escape out of a metastable state overcoming the potential barrier. For this aim, we model this process numerically using the Langevin equations. This modeling is performed for the wide range of the friction constant covering bot... [Phys. Rev. E 97, 032107] Published Mon Mar 12, 2018

Schlagwort(e): Statistical Physics

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Localization of Interacting Dirac Fermions (2018)

Tianxing Ma, Lufeng Zhang, Chia-Chen Chang, Hsiang-Hsuan Hung, and Richard T. Scalettar

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-03-13

Beschreibung: Author(s): Tianxing Ma, Lufeng Zhang, Chia-Chen Chang, Hsiang-Hsuan Hung, and Richard T. Scalettar Using exact quantum Monte Carlo calculations, we examine the interplay between localization of electronic states driven by many-body correlations and that by randomness in a two-dimensional system featuring linearly vanishing density of states at the Fermi level. A novel disorder-induced nonmagnetic... [Phys. Rev. Lett. 120, 116601] Published Mon Mar 12, 2018

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

Print ISSN: 0031-9007

Digitale ISSN: 1079-7114

Thema: Physik

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Density classification performance and ergodicity of the Gacs-Kurdyumov-Levin cellular automaton model IV (2018)

J. Ricardo G. Mendonça and Rolf E. O. Simões

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-07-26

Beschreibung: Author(s): J. Ricardo G. Mendonça and Rolf E. O. Simões Almost four decades ago, Gacs, Kurdyumov, and Levin introduced three different cellular automata to investigate whether one-dimensional nonequilibrium interacting particle systems are capable of displaying phase transitions, and, as a byproduct, they introduced the density classification problem (th... [Phys. Rev. E 98, 012135] Published Wed Jul 25, 2018

Schlagwort(e): Statistical Physics

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Attractive Fermi polarons at nonzero temperatures with a finite impurity concentration (2018)

Hui Hu, Brendan C. Mulkerin, Jia Wang, and Xia-Ji Liu

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-07-26

Beschreibung: Author(s): Hui Hu, Brendan C. Mulkerin, Jia Wang, and Xia-Ji Liu We theoretically investigate how quasiparticle properties of an attractive Fermi polaron are affected by nonzero temperature and finite impurity concentration in three dimensions and in free space. By applying both non-self-consistent and self-consistent many-body T -matrix theories, we calculate the... [Phys. Rev. A 98, 013626] Published Wed Jul 25, 2018

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

Print ISSN: 1050-2947

Digitale ISSN: 1094-1622

Thema: Physik

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Multilayer-by-multilayer surface melting of Cu(200) (2018)

Kai Wang, Haizhen Wu, Mengke Ge, Xingang Hou, Ning Liu, Jia He, Wei Xi, and Jun Luo

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-07-26

Beschreibung: Author(s): Kai Wang, Haizhen Wu, Mengke Ge, Xingang Hou, Ning Liu, Jia He, Wei Xi, and Jun Luo It is well known that surface melting of metal materials is caused by vacancies, and melting proceeds layer by layer in theoretical predictions. However, the melting process has rarely been directly investigated in real time at atomic resolution. Herein, the (200) surface-melting process of Cu nanop... [Phys. Rev. B 98, 045425] Published Wed Jul 25, 2018

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

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Closed-form expressions for effective constitutive parameters: Electrostrictive and magnetostrictive tensors for bianisotropic metamaterials and their use in optical force density calculations (2018)

Neng Wang, Shubo Wang, Zhao-Qing Zhang, and C. T. Chan

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-07-26

Beschreibung: Author(s): Neng Wang, Shubo Wang, Zhao-Qing Zhang, and C. T. Chan Using a multiple scattering technique, we derived closed-form expressions for effective constitutive parameters and electro/magneto-strictive tensor components for 2D bianisotropic metamaterials. Using the principle of virtual work, we obtained the electromagnetic stress tensor that can be used to c... [Phys. Rev. B 98, 045426] Published Wed Jul 25, 2018

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

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Geometrical percolation threshold of congruent cuboidlike particles in overlapping particle systems (2018)

Jianjun Lin, Huisu Chen, and Wenxiang Xu

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-07-26

Beschreibung: Author(s): Jianjun Lin, Huisu Chen, and Wenxiang Xu With the advances in artificial particle synthesis, it is possible to create particles with unique shapes. Particle shape becomes a feasible parameter for tuning the percolation behavior. How to accurately predict the percolation threshold by particle characteristics for arbitrary particles has arou... [Phys. Rev. E 98, 012134] Published Wed Jul 25, 2018

Schlagwort(e): Statistical Physics

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Activated dynamics: An intermediate model between the random energy model and the $p$-spin model (2018)

Marco Baity-Jesi, Alexandre Achard-de Lustrac, and Giulio Biroli

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-07-26

Beschreibung: Author(s): Marco Baity-Jesi, Alexandre Achard-de Lustrac, and Giulio Biroli To study the activated dynamics of mean-field glasses, which takes place on times of order exp ( N ) , where N is the system size, we introduce a new model, the correlated random energy model (CREM), that allows for a smooth interpolation between the REM and the p -spin models. We study numerically and a... [Phys. Rev. E 98, 012133] Published Wed Jul 25, 2018

Schlagwort(e): Statistical Physics

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Photon-Number-Resolved Measurement of an Exciton-Polariton Condensate (2018)

M. Klaas, E. Schlottmann, H. Flayac, F. P. Laussy, F. Gericke, M. Schmidt, M. v. Helversen, J. Beyer, S. Brodbeck, H. Suchomel, S. Höfling, S. Reitzenstein, and C. Schneider

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-07-26

Beschreibung: Author(s): M. Klaas, E. Schlottmann, H. Flayac, F. P. Laussy, F. Gericke, M. Schmidt, M. v. Helversen, J. Beyer, S. Brodbeck, H. Suchomel, S. Höfling, S. Reitzenstein, and C. Schneider By counting the photons emitted from a microcavity, researchers shed light on the nature of an exotic condensate of quasiparticles contained in the cavity. [Phys. Rev. Lett. 121, 047401] Published Wed Jul 25, 2018

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

Print ISSN: 0031-9007

Digitale ISSN: 1079-7114

Thema: Physik

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Spin-1 topological monopoles in the parameter space of ultracold atoms (2018)

Haiping Hu and Chuanwei Zhang

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-07-27

Beschreibung: Author(s): Haiping Hu and Chuanwei Zhang A magnetic monopole is a hypothetical elementary particle with an isolated magnetic pole. Its existence would directly lead to the quantization of electric charges. In recent years, analogs of magnetic monopoles, represented by topological defects in parameter spaces, have been studied in a wide ran... [Phys. Rev. A 98, 013627] Published Thu Jul 26, 2018

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

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Engineering quantum spin liquids and many-body Majorana states with a driven superconducting box circuit (2018)

Fan Yang, Loïc Henriet, Ariane Soret, and Karyn Le Hur

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-07-27

Beschreibung: Author(s): Fan Yang, Loïc Henriet, Ariane Soret, and Karyn Le Hur We design a driven superconducting box with four spins S = 1 / 2 (qubits) such that coupled devices can give insight on the occurrence of quantum spin liquids and many-body Majorana states. Within one box or island, we introduce a generalized nuclear magnetic resonance algorithm to realize our models an... [Phys. Rev. B 98, 035431] Published Thu Jul 26, 2018

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

Print ISSN: 1098-0121

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Thermal bath engineering for swift equilibration (2018)

Marie Chupeau, Benjamin Besga, David Guéry-Odelin, Emmanuel Trizac, Artyom Petrosyan, and Sergio Ciliberto

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-07-27

Beschreibung: Author(s): Marie Chupeau, Benjamin Besga, David Guéry-Odelin, Emmanuel Trizac, Artyom Petrosyan, and Sergio Ciliberto We provide a theoretical and experimental protocol that dynamically controls the effective temperature of a thermal bath, through a well-designed noise engineering. We use this powerful technique to shortcut the relaxation of an overdamped Brownian particle in a quadratic potential by a joint time e... [Phys. Rev. E 98, 010104(R)] Published Thu Jul 26, 2018

Schlagwort(e): Statistical Physics

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Fast Bayesian inference of the multivariate Ornstein-Uhlenbeck process (2018)

Rajesh Singh, Dipanjan Ghosh, and R. Adhikari

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-07-27

Beschreibung: Author(s): Rajesh Singh, Dipanjan Ghosh, and R. Adhikari The multivariate Ornstein-Uhlenbeck process is used in many branches of science and engineering to describe the regression of a system to its stationary mean. Here we present an O ( N ) Bayesian method to estimate the drift and diffusion matrices of the process from N discrete observations of a sample ... [Phys. Rev. E 98, 012136] Published Thu Jul 26, 2018

Schlagwort(e): Statistical Physics

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Insights into noise modulation in oligomerization systems of increasing complexity (2018)

Fabrizio Pucci and Marianne Rooman

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-07-27

Beschreibung: Author(s): Fabrizio Pucci and Marianne Rooman Understanding under which conditions the increase of systems complexity is evolutionarily advantageous, and how this trend is related to the modulation of the intrinsic noise, are fascinating issues of utmost importance for synthetic and systems biology. To get insights into these matters, we analyz... [Phys. Rev. E 98, 012137] Published Thu Jul 26, 2018

Schlagwort(e): Statistical Physics

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Detecting Superconductivity in the High Pressure Hydrides and Metallic Hydrogen from Optical Properties (2018)

J. P. Carbotte, E. J. Nicol, and T. Timusk

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-07-27

Beschreibung: Author(s): J. P. Carbotte, E. J. Nicol, and T. Timusk We present a new technique for measuring the critical temperature T c in the high pressure, high T c electron-phonon-driven superconducting hydrides. This technique does not require connecting leads to the sample. In the region of the absorption spectrum above the sum of the optical gap and maximum ph... [Phys. Rev. Lett. 121, 047002] Published Thu Jul 26, 2018

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

Print ISSN: 0031-9007

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Fingerprints of Berry phases in the bulk exciton spectrum of a topological insulator (2018)

Andrew A. Allocca, Dmitry K. Efimkin, and Victor M. Galitski

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-07-28

Beschreibung: Author(s): Andrew A. Allocca, Dmitry K. Efimkin, and Victor M. Galitski We examine excitons formed in the bulk of a topological insulator as the system is tuned via a parameter between topological and trivial insulating phases, arguing that nontrivial topology has fingerprints in the spectrum of these excitons. The closely related hydrogen atom problem is well known to ... [Phys. Rev. B 98, 045430] Published Fri Jul 27, 2018

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

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Structural, vibrational, and electronic properties of single-layer hexagonal crystals of group IV and V elements (2018)

Burak Özdamar, Gözde Özbal, M. Neşet Çınar, Koray Sevim, Gizem Kurt, Birnur Kaya, and Hâldun Sevinçli

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-07-28

Beschreibung: Author(s): Burak Özdamar, Gözde Özbal, M. Neşet Çınar, Koray Sevim, Gizem Kurt, Birnur Kaya, and Hâldun Sevinçli Using first-principles density functional theory calculations, we investigate a family of stable two-dimensional crystals with chemical formula A 2 B 2 , where A and B belong to groups IV and V, respectively ( A = C , Si, Ge, Sn, Pb; B = N , P, As, Sb, Bi). Two structural symmetries of hexagonal lattices P 6 ¯ m 2 ... [Phys. Rev. B 98, 045431] Published Fri Jul 27, 2018

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

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Structural properties of the Jagla fluid (2018)

Mariano López de Haro, Álvaro Rodríguez-Rivas, Santos B. Yuste, and Andrés Santos

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-07-28

Beschreibung: Author(s): Mariano López de Haro, Álvaro Rodríguez-Rivas, Santos B. Yuste, and Andrés Santos The structural properties of the Jagla fluid are studied by Monte Carlo (MC) simulations, numerical solutions of integral equation theories, and the (semi-analytical) rational-function approximation (RFA) method. In the latter case, the results are obtained from the assumption (supported by our MC s... [Phys. Rev. E 98, 012138] Published Fri Jul 27, 2018

Schlagwort(e): Statistical Physics

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Topological invariants in dissipative extensions of the Su-Schrieffer-Heeger model (2018)

Felix Dangel, Marcel Wagner, Holger Cartarius, Jörg Main, and Günter Wunner

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-07-28

Beschreibung: Author(s): Felix Dangel, Marcel Wagner, Holger Cartarius, Jörg Main, and Günter Wunner We investigate dissipative extensions of the Su-Schrieffer-Heeger model with regard to different approaches of modeling dissipation. In doing so, we use two distinct frameworks to describe the gain and loss of particles: One uses Lindblad operators within the scope of Lindblad master equations, and ... [Phys. Rev. A 98, 013628] Published Fri Jul 27, 2018

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

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Thema: Physik

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Many-body stabilization of a resonant $p$-wave Fermi gas in one dimension (2018)

Lei Pan, Shu Chen, and Xiaoling Cui

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-07-31

Beschreibung: Author(s): Lei Pan, Shu Chen, and Xiaoling Cui Using the asymptotic Bethe ansatz, we study the stabilization problem of the one-dimensional spin-polarized Fermi gas confined in a hard-wall potential with a tunable p -wave scattering length and finite effective range. We find that the interplay of two factors, i.e., the finite interaction range an... [Phys. Rev. A 98, 011603(R)] Published Mon Jul 30, 2018

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

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Phase transitions on a ladder of braided non-Abelian anyons (2018)

Babatunde M. Ayeni, Robert N. C. Pfeifer, and Gavin K. Brennen

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-07-31

Beschreibung: Author(s): Babatunde M. Ayeni, Robert N. C. Pfeifer, and Gavin K. Brennen Non-Abelian anyons can exist as pointlike particles in two-dimensional systems and have particle exchange statistics which are neither bosonic nor fermionic. Like in spin systems, the role of fusion (Heisenberg-like) interactions between anyons has been well studied. However, unlike our understandin... [Phys. Rev. B 98, 045432] Published Mon Jul 30, 2018

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

Print ISSN: 1098-0121

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Thema: Physik

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Born-Bogoliubov-Green-Kirkwood-Yvon hierarchy for ultracold bosonic systems (2018)

Sven Krönke and Peter Schmelcher

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-07-31

Beschreibung: Author(s): Sven Krönke and Peter Schmelcher We establish a theoretical framework for exploring the quantum dynamics of finite ultracold bosonic ensembles based on the Born-Bogoliubov-Green-Kirkwood-Yvon (BBGKY) hierarchy for equations of motion for few-particle reduced density matrices (RDMs). The theory applies to zero as well as low tempera... [Phys. Rev. A 98, 013629] Published Mon Jul 30, 2018

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

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Spinon Fermi Surface in a Cluster Mott Insulator Model on a Triangular Lattice and Possible Application to $1T\text{−}{\mathrm{Ta}\mathrm{S}}_{2}$ (2018)

Wen-Yu He, Xiao Yan Xu, Gang Chen, K. T. Law, and Patrick A. Lee

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-07-25

Beschreibung: Author(s): Wen-Yu He, Xiao Yan Xu, Gang Chen, K. T. Law, and Patrick A. Lee 1 T − Ta S 2 is a cluster Mott insulator on the triangular lattice with 13 Ta atoms forming a star of David cluster as the unit cell. We derive a two-dimensional X X Z spin- 1 / 2 model with a four-spin ring exchange term to describe the effective low energy physics of a monolayer 1 T − Ta S 2 , where the effective... [Phys. Rev. Lett. 121, 046401] Published Tue Jul 24, 2018

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Development of Ferromagnetic Fluctuations in Heavily Overdoped $(\mathrm{Bi},\mathrm{Pb}{)}_{2}{\mathrm{Sr}}_{2}{\mathrm{CuO}}_{6+δ}$ Copper Oxides (2018)

Koshi Kurashima, Tadashi Adachi, Kensuke M. Suzuki, Yasushi Fukunaga, Takayuki Kawamata, Takashi Noji, Hitoshi Miyasaka, Isao Watanabe, Masanori Miyazaki, Akihiro Koda, Ryosuke Kadono, and Yoji Koike

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-08-02

Beschreibung: Author(s): Koshi Kurashima, Tadashi Adachi, Kensuke M. Suzuki, Yasushi Fukunaga, Takayuki Kawamata, Takashi Noji, Hitoshi Miyasaka, Isao Watanabe, Masanori Miyazaki, Akihiro Koda, Ryosuke Kadono, and Yoji Koike We demonstrate the presence of ferromagnetic (FM) fluctuations in the superconducting and nonsuperconducting heavily overdoped regimes of high-temperature superconducting copper oxides, using ( Bi , Pb ) 2 Sr 2 CuO 6 + δ (Bi-2201) single crystals. Magnetization curves exhibit a tendency to be saturated in high... [Phys. Rev. Lett. 121, 057002] Published Wed Aug 01, 2018

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Unattainability of Carnot efficiency in thermal motors: Coarse graining and entropy production of Feynman-Smoluchowski ratchets (2018)

Yohei Nakayama, Kyogo Kawaguchi, and Naoko Nakagawa

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-08-04

Beschreibung: Author(s): Yohei Nakayama, Kyogo Kawaguchi, and Naoko Nakagawa We revisit and analyze the thermodynamic efficiency of the Feynman-Smoluchowski (FS) ratchet, a classical thought experiment describing an autonomous heat-work converter. Starting from the full kinetics of the FS ratchet and deriving the exact forms of the hidden dissipations resulting from coarse g... [Phys. Rev. E 98, 022102] Published Fri Aug 03, 2018

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Defect-Assisted Tunneling Electroresistance in Ferroelectric Tunnel Junctions (2018)

Konstantin Klyukin, L. L. Tao, Evgeny Y. Tsymbal, and Vitaly Alexandrov

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-08-04

Beschreibung: Author(s): Konstantin Klyukin, L. L. Tao, Evgeny Y. Tsymbal, and Vitaly Alexandrov Recent experimental results have demonstrated ferroelectricity in thin films of SrTiO 3 induced by antisite Ti Sr defects. This opens a possibility to use SrTiO 3 as a barrier layer in ferroelectric tunnel junctions (FTJs)—emerging electronic devices promising for applications in nanoelectronics. Here ... [Phys. Rev. Lett. 121, 056601] Published Fri Aug 03, 2018

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Spin-orbit-coupled soliton in a random potential (2018)

Sh. Mardonov, V. V. Konotop, B. A. Malomed, M. Modugno, and E. Ya. Sherman

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-08-07

Beschreibung: Author(s): Sh. Mardonov, V. V. Konotop, B. A. Malomed, M. Modugno, and E. Ya. Sherman We investigate theoretically the dynamics of a spin-orbit-coupled soliton formed by a self-interacting Bose-Einstein condensate immersed in a random potential, in the presence of an artificial magnetic field. We find that, due to the anomalous spin-dependent velocity, the synthetic Zeeman coupling c... [Phys. Rev. A 98, 023604] Published Mon Aug 06, 2018

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Andreev transport through single-molecule magnets (2018)

F. Pawlicki and I. Weymann

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-08-08

Beschreibung: Author(s): F. Pawlicki and I. Weymann The Andreev transport through a large-spin magnetic molecule, such as a single molecular magnet, attached to superconducting and ferromagnetic leads is studied theoretically by means of the real-time diagrammatic technique. It is shown that due to the proximity effect, molecular Andreev bound states... [Phys. Rev. B 98, 085411] Published Tue Aug 07, 2018

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Two-phonon Raman bands of single-walled carbon nanotubes: A case study (2018)

Valentin N. Popov

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-08-08

Beschreibung: Author(s): Valentin N. Popov It has been long accepted that the second-order Raman bands in carbon nanotubes are enhanced through the double-resonance mechanism. Although separate aspects of this mechanism have been studied for a few second-order Raman bands, including the most intense defect-induced D band and the two-phonon 2... [Phys. Rev. B 98, 085413] Published Tue Aug 07, 2018

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Shubnikov–de Haas oscillations in the anomalous Hall conductivity of Chern insulators (2018)

Luis M. Canonico, Jose H. García, Tatiana G. Rappoport, Aires Ferreira, and R. B. Muniz

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-08-07

Beschreibung: Author(s): Luis M. Canonico, Jose H. García, Tatiana G. Rappoport, Aires Ferreira, and R. B. Muniz The Haldane model on a honeycomb lattice is a paradigmatic example of a system featuring quantized Hall conductivity in the absence of an external magnetic field, that is, a quantum anomalous Hall effect. Recent theoretical work predicted that the anomalous Hall conductivity of massive Dirac fermion... [Phys. Rev. B 98, 085409] Published Mon Aug 06, 2018

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Counterpropagating Fractional Hall States in Mirror-Symmetric Dirac Semimetals (2018)

Yafis Barlas

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-08-08

Beschreibung: Author(s): Yafis Barlas The Landau bands of mirror symmetric 2D Dirac semimetals (e.g., odd layers of A B A graphene) can be identified by their parity with respect to mirror symmetry. This symmetry facilitates a new class of counterpropagating Hall states. We predict the presence of a Laughlin-like correlated liquid state, ... [Phys. Rev. Lett. 121, 066602] Published Tue Aug 07, 2018

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Generation of Quantized Polaritons below the Condensation Threshold (2018)

Peter Cristofolini, Z. Hatzopoulos, Pavlos G. Savvidis, and Jeremy J. Baumberg

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-08-08

Beschreibung: Author(s): Peter Cristofolini, Z. Hatzopoulos, Pavlos G. Savvidis, and Jeremy J. Baumberg Exciton polaritons in high quality semiconductor microcavities can travel long macroscopic distances ( 〉 100 μ m ) due to their ultralight effective mass. The polaritons are repelled from optically pumped exciton reservoirs where they are formed; however, their spatial dynamics is not as expected fo... [Phys. Rev. Lett. 121, 067401] Published Tue Aug 07, 2018

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Second harmonic generation in the plasmon-polariton gap of quasiperiodic metamaterial photonic superlattices (2018)

F. Reyes Gómez, N. Porras-Montenegro, Osvaldo N. Oliveira, Jr., and J. R. Mejía-Salazar

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-08-08

Beschreibung: Author(s): F. Reyes Gómez, N. Porras-Montenegro, Osvaldo N. Oliveira, Jr., and J. R. Mejía-Salazar Self-similar bulk plasmon-polariton modes in quasiperiodic photonic superlattices were used here for a giant enhancement of second harmonic generation. Results for Fibonacci and Thue-Morse-like superlattices indicate that not only the disorder but also the symmetry of the unit cell plays a crucial r... [Phys. Rev. B 98, 075406] Published Tue Aug 07, 2018

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Effects of collectively induced scattering of gas stream by impurity ensembles: Shock-wave enhancement and disorder-stimulated nonlinear screening (2018)

O. V. Kliushnychenko and S. P. Lukyanets

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-08-07

Beschreibung: Author(s): O. V. Kliushnychenko and S. P. Lukyanets We report on specific effects of collective scattering for a cloud of heavy impurities exposed to a gas stream. Formation is presented of a common density perturbation and shock waves, both generated collectively by a system of scatterers at sudden application of the stream-inducing external field. ... [Phys. Rev. E 98, 020101(R)] Published Mon Aug 06, 2018

Schlagwort(e): Statistical Physics

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Magnon Splitting Induced by Charge Transfer in the Three-Orbital Hubbard Model (2018)

Yao Wang, Edwin W. Huang, Brian Moritz, and Thomas P. Devereaux

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-06-12

Beschreibung: Author(s): Yao Wang, Edwin W. Huang, Brian Moritz, and Thomas P. Devereaux Understanding spin excitations and their connection to unconventional superconductivity have remained central issues since the discovery of cuprates. Direct measurement of the dynamical spin structure factor in the parent compounds can provide key information on important interactions relevant in th... [Phys. Rev. Lett. 120, 246401] Published Mon Jun 11, 2018

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Polarization-controlled coherent phonon generation in acoustoplasmonic metasurfaces (2018)

Norberto D. Lanzillotti-Kimura, Kevin P. O’Brien, Junsuk Rho, Haim Suchowski, Xiaobo Yin, and Xiang Zhang

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-05

Beschreibung: Author(s): Norberto D. Lanzillotti-Kimura, Kevin P. O’Brien, Junsuk Rho, Haim Suchowski, Xiaobo Yin, and Xiang Zhang Acoustic vibrations at the nanoscale (GHz-THz frequencies) and their interactions with electrons, photons, and other excitations are the heart of an emerging field in physics: nanophononics. The design of ultrahigh frequency acoustic-phonon transducers, with tunable frequency, and easy to integrate ... [Phys. Rev. B 97, 235403] Published Mon Jun 04, 2018

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Intrinsic and anisotropic Rashba spin splitting in Janus transition-metal dichalcogenide monolayers (2018)

Tao Hu, Fanhao Jia, Guodong Zhao, Jiongyao Wu, Alessandro Stroppa, and Wei Ren

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-05

Beschreibung: Author(s): Tao Hu, Fanhao Jia, Guodong Zhao, Jiongyao Wu, Alessandro Stroppa, and Wei Ren Transition-metal dichalcogenides (TMDs) monolayers have been considered as important two-dimensional semiconductor materials for the study of fundamental physics in the field of spintronics. However, the out-of-plane mirror symmetry in TMDs may constrain electrons' degrees of freedom and it may limi... [Phys. Rev. B 97, 235404] Published Mon Jun 04, 2018

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Dependence of extreme events on spatial location (2018)

R. E. Amritkar, Wen-Jong Ma, and Chin-Kun Hu

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-06-05

Beschreibung: Author(s): R. E. Amritkar, Wen-Jong Ma, and Chin-Kun Hu To model the dependence of extreme events on locations, we consider extreme events of Brownian particles in a potential. We find that barring the exception of very large potentials and/or very small regions, in general, the probability of extreme events increases with the potential. Our approach is ... [Phys. Rev. E 97, 062102] Published Mon Jun 04, 2018

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Interface-induced spin-orbit interaction in silicon quantum dots and prospects for scalability (2018)

Rifat Ferdous, Kok W. Chan, Menno Veldhorst, J. C. C. Hwang, C. H. Yang, Harshad Sahasrabudhe, Gerhard Klimeck, Andrea Morello, Andrew S. Dzurak, and Rajib Rahman

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-05

Beschreibung: Author(s): Rifat Ferdous, Kok W. Chan, Menno Veldhorst, J. C. C. Hwang, C. H. Yang, Harshad Sahasrabudhe, Gerhard Klimeck, Andrea Morello, Andrew S. Dzurak, and Rajib Rahman We identify the presence of monatomic steps at the Si/SiGe or Si / SiO 2 interface as a dominant source of variations in the dephasing time of silicon (Si) quantum dot (QD) spin qubits. First, using atomistic tight-binding calculations we show that the g -factors and their Stark shifts undergo variation... [Phys. Rev. B 97, 241401(R)] Published Mon Jun 04, 2018

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Strong and weak second-order topological insulators with hexagonal symmetry and ℤ${}_{3}$ index (2018)

Motohiko Ezawa

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-05

Beschreibung: Author(s): Motohiko Ezawa We propose second-order topological insulators (SOTIs) whose lattice structure has a hexagonal symmetry C 6 . We start with a three-dimensional weak topological insulator constructed on a stacked triangular lattice, which has only side topological surface states. We then introduce an additional mass t... [Phys. Rev. B 97, 241402(R)] Published Mon Jun 04, 2018

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Role of quantum coherence in the thermodynamics of energy transfer (2018)

Ivan Henao and Roberto M. Serra

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-06-05

Beschreibung: Author(s): Ivan Henao and Roberto M. Serra Recent research on the thermodynamic arrow of time, at the microscopic scale, has questioned the universality of its direction. Theoretical studies showed that quantum correlations can be used to revert the natural heat flow (from the hot body to the cold one), posing an apparent challenge to the se... [Phys. Rev. E 97, 062105] Published Mon Jun 04, 2018

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Post-Ehrenfest many-body quantum interferences in ultracold atoms far out of equilibrium (2018)

Steven Tomsovic, Peter Schlagheck, Denis Ullmo, Juan-Diego Urbina, and Klaus Richter

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-06-15

Beschreibung: Author(s): Steven Tomsovic, Peter Schlagheck, Denis Ullmo, Juan-Diego Urbina, and Klaus Richter Far out-of-equilibrium many-body quantum dynamics in isolated systems necessarily generates interferences beyond an Ehrenfest timescale, where quantum and classical expectation values diverge. Of great recent interest is the role these interferences play in the spreading of quantum information acros... [Phys. Rev. A 97, 061606(R)] Published Thu Jun 14, 2018

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Reply to “Comment on ‘Route from discreteness to the continuum for the Tsallis $\mathit{q}$-entropy’ ” (2018)

Thomas Oikonomou and G. Baris Bagci

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-06-06

Beschreibung: Author(s): Thomas Oikonomou and G. Baris Bagci It has been known for some time that the usual q -entropy S q ( n ) cannot be shown to converge to the continuous case. In Phys. Rev. E 97 , 012104 (2018) , we have shown that the discrete q -entropy S ̃ q ( n ) converges to the continuous case when the total number of states are properly taken into account in t... [Phys. Rev. E 97, 066102] Published Tue Jun 05, 2018

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Comment on “Route from discreteness to the continuum for the Tsallis $q$-entropy” (2018)

Congjie Ou and Sumiyoshi Abe

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-06-06

Beschreibung: Author(s): Congjie Ou and Sumiyoshi Abe Several years ago, it had been discussed that nonlogarithmic entropies, such as the Tsallis q -entropy cannot be applied to systems with continuous variables. Now, in their recent paper [ Phys. Rev. E 97 , 012104 (2018) ], Oikonomou and Bagci have modified the form of the q -entropy for discrete variable... [Phys. Rev. E 97, 066101] Published Tue Jun 05, 2018

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Electron Phonon Coupling versus Photoelectron Energy Loss at the Origin of Replica Bands in Photoemission of FeSe on ${\mathrm{SrTiO}}_{3}$ (2018)

Fengmiao Li and George A. Sawatzky

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-06-06

Beschreibung: Author(s): Fengmiao Li and George A. Sawatzky The recent observation of replica bands in single-layer FeSe / SrTiO 3 by angle-resolved photoemission spectroscopy (ARPES) has triggered intense discussions concerning the potential influence of the FeSe electrons coupling with substrate phonons on the superconducting transition temperature. Here we p... [Phys. Rev. Lett. 120, 237001] Published Tue Jun 05, 2018

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Nonlocal pair correlations in Lieb-Liniger gases: A unified nonperturbative approach from weak degeneracy to high temperatures (2018)

Benjamin Geiger, Quirin Hummel, Juan Diego Urbina, and Klaus Richter

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-06-16

Beschreibung: Author(s): Benjamin Geiger, Quirin Hummel, Juan Diego Urbina, and Klaus Richter We present analytical results for the nonlocal pair correlations in one-dimensional bosonic systems with repulsive contact interactions that are uniformly valid from the classical regime of high temperatures down to weak quantum degeneracy entering the regime of ultralow temperatures. By using the i... [Phys. Rev. A 97, 063612] Published Fri Jun 15, 2018

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Wigner function of noninteracting trapped fermions (2018)

David S. Dean, Pierre Le Doussal, Satya N. Majumdar, and Grégory Schehr

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-06-16

Beschreibung: Author(s): David S. Dean, Pierre Le Doussal, Satya N. Majumdar, and Grégory Schehr The Wigner function is studied for trapped noninteracting fermions. Universal scaling behavior of the function, independent of the trapping potential and the spatial dimension, is found at both zero and finite temperatures. [Phys. Rev. A 97, 063614] Published Fri Jun 15, 2018

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

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Dimer-dimer zero crossing and dilute dimerized liquid in a one-dimensional mixture (2018)

A. Pricoupenko and D. S. Petrov

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-06-16

Beschreibung: Author(s): A. Pricoupenko and D. S. Petrov We consider the system of dimers formed in a one-dimensional mass-balanced Bose-Bose mixture of species σ = ↑ , ↓ with attractive interspecies and repulsive intraspecies contact interactions. In the plane parametrized by the ratios of the coupling constants g ↑ ↑ / | g ↑ ↓ | and g ↓ ↓ / | g ↑ ↓ | we trace out the curve... [Phys. Rev. A 97, 063616] Published Fri Jun 15, 2018

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

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Berry curvature in monolayer ${\mathrm{MoS}}_{2}$ with broken mirror symmetry (2018)

Kyung-Han Kim and Hyun-Woo Lee

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-16

Beschreibung: Author(s): Kyung-Han Kim and Hyun-Woo Lee An ideal 1 H phase monolayer MoS 2 has mirror reflection symmetry, but this symmetry is broken in common experimental situations, where the monolayer is placed on a substrate. By using k · p perturbation theory, we investigate the effect of mirror symmetry breaking on the Berry curvature of the material... [Phys. Rev. B 97, 235423] Published Fri Jun 15, 2018

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${Z}_{N}$ Berry Phases in Symmetry Protected Topological Phases (2018)

Toshikaze Kariyado, Takahiro Morimoto, and Yasuhiro Hatsugai

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-06-16

Beschreibung: Author(s): Toshikaze Kariyado, Takahiro Morimoto, and Yasuhiro Hatsugai We show that the Z N Berry phase (Berry phase quantized into 2 π / N ) provides a useful tool to characterize symmetry protected topological phases with correlation that can be directly computed through numerics of a relatively small system size. The Z N Berry phase is defined in a N − 1 -dimensional paramet... [Phys. Rev. Lett. 120, 247202] Published Fri Jun 15, 2018

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Comment on “Nonequilibrium thermodynamics with binary quantum correlations” (2018)

P. Lipavský

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-06-20

Beschreibung: Author(s): P. Lipavský The article [ Phys. Rev. E 96 , 032106 (2017) ] recovers conservation laws and derives the H-theorem for the kinetic equation with gradient corrections. Here we show that this approach is not valid, leading to missing terms in the balance of energy and momentum and to disagreement with correlation entr... [Phys. Rev. E 97, 066103] Published Tue Jun 19, 2018

Schlagwort(e): Statistical Physics

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Theory of combustion in disordered media (2018)

Mauro Schiulaz, Christopher R. Laumann, Alexander V. Balatsky, and Boris Z. Spivak

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-06-20

Beschreibung: Author(s): Mauro Schiulaz, Christopher R. Laumann, Alexander V. Balatsky, and Boris Z. Spivak The conventional theory of combustion describes systems where all of the parameters are spatially homogeneous. On the other hand, combustion in disordered explosives has long been known to occur after local regions of the material, called hot spots, are ignited. In this article we show that a system... [Phys. Rev. E 97, 062133] Published Tue Jun 19, 2018

Schlagwort(e): Statistical Physics

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Driven Widom-Rowlinson lattice gas (2018)

Ronald Dickman and R. K. P. Zia

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-06-19

Beschreibung: Author(s): Ronald Dickman and R. K. P. Zia In the Widom-Rowlinson lattice gas, two particle species ( A , B ) diffuse freely via particle-hole exchange, subject to both on-site exclusion and prohibition of A − B nearest-neighbor pairs. As an athermal system, the overall densities are the only control parameters. As the densities increase, an entr... [Phys. Rev. E 97, 062126] Published Mon Jun 18, 2018

Schlagwort(e): Statistical Physics

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Finite-bath corrections to the second law of thermodynamics (2018)

Jonathan G. Richens, Álvaro M. Alhambra, and Lluis Masanes

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-06-19

Beschreibung: Author(s): Jonathan G. Richens, Álvaro M. Alhambra, and Lluis Masanes The second law of thermodynamics states that a system in contact with a heat bath can undergo a transformation if and only if its free energy decreases. However, the “if” part of this statement is only true when the effective heat bath is infinite. In this article we remove this idealization and der... [Phys. Rev. E 97, 062132] Published Mon Jun 18, 2018

Schlagwort(e): Statistical Physics

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Exciton-polarons in doped semiconductors in a strong magnetic field (2018)

Dmitry K. Efimkin and Allan H. Mac; Donald

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-22

Beschreibung: Author(s): Dmitry K. Efimkin and Allan H. MacDonald In previous work, we have argued that the optical properties of moderately doped two-dimensional semiconductors can be described in terms of excitons dressed by their interactions with a degenerate Fermi sea of additional charge carriers. These interactions split the bare exciton into attractive and... [Phys. Rev. B 97, 235432] Published Thu Jun 21, 2018

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Cascade model of wave turbulence (2018)

Wonjung Lee, Gregor Kovačič, and David Cai

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-06-22

Beschreibung: Author(s): Wonjung Lee, Gregor Kovačič, and David Cai We propose a cascade model of wave turbulence designed to simplify the study of this phenomenon in the way that shell models simplify the study of Navier-Stokes turbulence. The model consists of resonant quartets, in which some modes are driven and damped and others are shared by pairs of quartets a... [Phys. Rev. E 97, 062140] Published Thu Jun 21, 2018

Schlagwort(e): Statistical Physics

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Atomic visualization of copper oxide structure in the infinite-layer cuprate $\mathrm{SrCu}{\mathrm{O}}_{2}$ (2018)

Yong Zhong, Sha Han, Yang Wang, Zhiling Luo, Ding Zhang, Lili Wang, Wei Li, Ke He, Can-Li Song, Xu-Cun Ma, and Qi-Kun Xue

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-23

Beschreibung: Author(s): Yong Zhong, Sha Han, Yang Wang, Zhiling Luo, Ding Zhang, Lili Wang, Wei Li, Ke He, Can-Li Song, Xu-Cun Ma, and Qi-Kun Xue We report the atomic-scale structure of epitaxial films of the parent infinite-layer compound SrCu O 2 prepared on SrTiO 3 by molecular beam epitaxy. In situ scanning tunneling microscopy study reveals a stoichiometric copper oxide ( CuO 2 ) -terminated surface featured by 2 × 2 reconstruction, caused prima... [Phys. Rev. B 97, 245420] Published Fri Jun 22, 2018

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Temperature-dependent terahertz spectroscopy of inverted-band three-layer InAs/GaSb/InAs quantum well (2018)

S. S. Krishtopenko, S. Ruffenach, F. Gonzalez-Posada, G. Boissier, M. Marcinkiewicz, M. A. Fadeev, A. M. Kadykov, V. V. Rumyantsev, S. V. Morozov, V. I. Gavrilenko, C. Consejo, W. Desrat, B. Jouault, W. Knap, E. Tournié, and F. Teppe

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-23

Beschreibung: Author(s): S. S. Krishtopenko, S. Ruffenach, F. Gonzalez-Posada, G. Boissier, M. Marcinkiewicz, M. A. Fadeev, A. M. Kadykov, V. V. Rumyantsev, S. V. Morozov, V. I. Gavrilenko, C. Consejo, W. Desrat, B. Jouault, W. Knap, E. Tournié, and F. Teppe We report on temperature-dependent terahertz spectroscopy of a three-layer InAs/GaSb/InAs quantum well (QW) with inverted-band structure. The interband optical transitions, measured up to 16 T at different temperatures by Landau-level magnetospectroscopy, demonstrate the inverted-band structure of t... [Phys. Rev. B 97, 245419] Published Fri Jun 22, 2018

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Molecular dynamics studies of ion beam implantation and patterning of silicon: Effect of noble gas cluster formation (2018)

Michael A. Lively, Samuel X. Bennett, and Jean Paul Allain

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-27

Beschreibung: Author(s): Michael A. Lively, Samuel X. Bennett, and Jean Paul Allain The use of energetic ion beams to induce nanopattern formation at surfaces has been well studied both experimentally and theoretically. However, the influence on morphological evolution of the implanted species themselves remains little understood, particularly in the case when the incident ion spec... [Phys. Rev. B 97, 235443] Published Tue Jun 26, 2018

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

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Magnetoplasmonic enhancement of Faraday rotation in patterned graphene metasurfaces (2018)

Michele Tamagnone, Tetiana M. Slipchenko, Clara Moldovan, Peter Q. Liu, Alba Centeno, Hamed Hasani, Amaia Zurutuza, Adrian M. Ionescu, Luis Martin-Moreno, Jérôme Faist, Juan R. Mosig, Alexey B. Kuzmenko, and Jean-Marie Poumirol

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-27

Beschreibung: Author(s): Michele Tamagnone, Tetiana M. Slipchenko, Clara Moldovan, Peter Q. Liu, Alba Centeno, Hamed Hasani, Amaia Zurutuza, Adrian M. Ionescu, Luis Martin-Moreno, Jérôme Faist, Juan R. Mosig, Alexey B. Kuzmenko, and Jean-Marie Poumirol Faraday rotation is a fundamental property present in all nonreciprocal optical elements. In the THz range, graphene displays strong Faraday rotation; unfortunately, it is limited to frequencies below the cyclotron resonance. Here, we show experimentally that in specifically designed metasurfaces, m... [Phys. Rev. B 97, 241410(R)] Published Tue Jun 26, 2018

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Band-edge levels of the NaCl(100) surface: Self-consistent hybrid density functional theory compared to many-body perturbation theory (2018)

Manuel Hochheim and Thomas Bredow

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-28

Beschreibung: Author(s): Manuel Hochheim and Thomas Bredow The electronic gap of bulk NaCl and the band-edge levels of the NaCl(100) surface are calculated using GW methods and self-consistent dielectric dependent hybrid functionals. Optical spectra are calculated by solving the Bethe-Salpeter equations (GW-BSE). For the calculation of the electronic struct... [Phys. Rev. B 97, 235447] Published Wed Jun 27, 2018

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Interplay of the Kondo effect with the induced pairing in electronic and caloric properties of T-shaped double quantum dots (2018)

Krzysztof P. Wójcik and Ireneusz Weymann

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-06-28

Beschreibung: Author(s): Krzysztof P. Wójcik and Ireneusz Weymann We examine the influence of the superconducting proximity effect on the transport properties of a T-shaped double quantum dot strongly coupled to two normal, nonmagnetic or ferromagnetic leads. We show that the two-stage Kondo screening may be suppressed or enhanced by the presence of pairing correl... [Phys. Rev. B 97, 235449] Published Wed Jun 27, 2018

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

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Topology of Disconnected Elementary Band Representations (2018)

Jennifer Cano, Barry Bradlyn, Zhijun Wang, L. Elcoro, M. G. Vergniory, C. Felser, M. I. Aroyo, and B. Andrei Bernevig

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-06-28

Beschreibung: Author(s): Jennifer Cano, Barry Bradlyn, Zhijun Wang, L. Elcoro, M. G. Vergniory, C. Felser, M. I. Aroyo, and B. Andrei Bernevig A new topological invariant—a movable but unremovable Dirac cone—is identified by considering symmorphic and non-symmorphic space groups of gapped elementary band representations. [Phys. Rev. Lett. 120, 266401] Published Wed Jun 27, 2018

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Quantum Hall Effect with Composites of Magnetic Flux Tubes and Charged Particles (2018)

Marija Todorić, Dario Jukić, Danko Radić, Marin Soljačić, and Hrvoje Buljan

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-06-29

Beschreibung: Author(s): Marija Todorić, Dario Jukić, Danko Radić, Marin Soljačić, and Hrvoje Buljan Composites formed from charged particles and magnetic flux tubes, proposed by Wilczek, are one model for anyons—particles obeying fractional statistics. Here we propose a scheme for realizing charged flux tubes, in which a charged object with an intrinsic magnetic dipole moment is placed between two... [Phys. Rev. Lett. 120, 267201] Published Thu Jun 28, 2018

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Dimensional crossover for the beyond-mean-field correction in Bose gases (2018)

Tobias Ilg, Jan Kumlin, Luis Santos, Dmitry S. Petrov, and Hans Peter Büchler

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-11-27

Beschreibung: Author(s): Tobias Ilg, Jan Kumlin, Luis Santos, Dmitry S. Petrov, and Hans Peter Büchler We present a detailed beyond-mean-field analysis of a weakly interacting Bose gas in the crossover from three to low dimensions. We find an analytical solution for the energy and provide a clear qualitative picture of the crossover in the case of a box potential with periodic boundary conditions. We... [Phys. Rev. A 98, 051604(R)] Published Mon Nov 26, 2018

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Order parameter and detection for a finite ensemble of crystallized one-dimensional dipolar bosons in optical lattices (2018)

Budhaditya Chatterjee and Axel U. J. Lode

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-11-27

Beschreibung: Author(s): Budhaditya Chatterjee and Axel U. J. Lode We explore the ground-state properties of a few bosons with dipole-dipole interactions in a one-dimensional optical lattice. For comparatively strong interactions, a transition from a Mott-insulator state to a crystal state occurs. Herein, we provide a detailed characterization and a detection proto... [Phys. Rev. A 98, 053624] Published Mon Nov 26, 2018

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

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Measurement of the Casimir force in a gas and in a liquid (2018)

Anne Le Cunuder, Artyom Petrosyan, George Palasantzas, Vitaly Svetovoy, and Sergio Ciliberto

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-11-29

Beschreibung: Author(s): Anne Le Cunuder, Artyom Petrosyan, George Palasantzas, Vitaly Svetovoy, and Sergio Ciliberto We present detailed measurements of the Casimir-Lifshitz force between two gold surfaces, performed in both gas (nitrogen) and liquid (ethanol) environments with the same apparatus and on the same spot of the sample. Furthermore, we study the role of double-layer forces in the liquid, and we show th... [Phys. Rev. B 98, 201408(R)] Published Wed Nov 28, 2018

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Screening cloud and non-Fermi-liquid scattering in topological Kondo devices (2018)

A. Latief and B. Béri

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-11-29

Beschreibung: Author(s): A. Latief and B. Béri The topological Kondo effect arises when conduction electrons in metallic leads are coupled to a mesoscopic superconducting island with Majorana fermions. Working with its minimal setup, we study the lead electron local tunneling density of states in its thermally smeared form motivated by scanning ... [Phys. Rev. B 98, 205427] Published Wed Nov 28, 2018

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Probing the Combined Electromagnetic Local Density of Optical States with Quantum Emitters Supporting Strong Electric and Magnetic Transitions (2018)

Dongfang Li, Sinan Karaveli, Sébastien Cueff, Wenhao Li, and Rashid Zia

American Physical Society (APS)

In: Physical Review Letters

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Beschreibung: Author(s): Dongfang Li, Sinan Karaveli, Sébastien Cueff, Wenhao Li, and Rashid Zia We experimentally demonstrate that the radiative decay rate of a quantum emitter is determined by the combined electric and magnetic local density of optical states (LDOS). A Drexhage-style experiment was performed for two distinct quantum emitters, divalent nickel ions in magnesium oxide and trival... [Phys. Rev. Lett. 121, 227403] Published Wed Nov 28, 2018

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Chiral Majorana edge states in the vortex core of a $p+ip$ Fermi superfluid (2018)

Jing-Bo Wang, Wei Yi, and Jian-Song Pan

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-11-28

Beschreibung: Author(s): Jing-Bo Wang, Wei Yi, and Jian-Song Pan We study Majorana modes in the vortex core of a two-dimensional p + i p Fermi superfluid interacting with a Bose-Einstein condensate. Under a repulsive s -wave contact interaction between fermions and bosons, fermions are depleted from the vortex core when the bosonic density becomes sufficiently high. ... [Phys. Rev. A 98, 053630] Published Tue Nov 27, 2018

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Phonon-induced linewidths of graphene electronic states (2018)

Bo Hellsing, Thomas Frederiksen, Federico Mazzola, Thiagarajan Balasubramanian, and Justin W. Wells

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-11-30

Beschreibung: Author(s): Bo Hellsing, Thomas Frederiksen, Federico Mazzola, Thiagarajan Balasubramanian, and Justin W. Wells The linewidths of the π and σ bands originating from the electron-phonon coupling in graphene are analyzed based on model calculations and experimental angle-resolved photoemission spectroscopy (ARPES) data. We find evidence for crucial contributions to the lifetime broadening from interband scatter... [Phys. Rev. B 98, 205428] Published Thu Nov 29, 2018

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

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Asymptotic expansion and Padé approximants for gravity-driven flow of a heated granular gas: Competition between inelasticity and forcing, up to Burnett order (2018)

Ramakrishna Rongali and Meheboob Alam

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-11-30

Beschreibung: Author(s): Ramakrishna Rongali and Meheboob Alam The gravity-driven planar channel flow of a heated granular gas is analyzed using a kinetic model with stochastic forcing to understand the roles of inelasticity and forcing on its hydrodynamics and rheology. The closed-form analytical solutions up to the fourth order in gravitational acceleration h... [Phys. Rev. E 98, 052144] Published Thu Nov 29, 2018

Schlagwort(e): Statistical Physics

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Critical-point behavior of a measurement-based quantum heat engine (2018)

Suman Chand and Asoka Biswas

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-11-30

Beschreibung: Author(s): Suman Chand and Asoka Biswas We study how a quantum heat engine performs across the critical value of an external parameter, pertaining to the quantum phase transition. Considering a two-ion system subjected to a magnetic field, we show that the system performs in a quantum Otto cycle above a critical value of the magnetic fiel... [Phys. Rev. E 98, 052147] Published Thu Nov 29, 2018

Schlagwort(e): Statistical Physics

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Possible flexoelectric origin of the Lifshitz transition in ${\mathrm{LaAlO}}_{3}/{\mathrm{SrTiO}}_{3}$ interfaces (2018)

Amany Raslan and W. A. Atkinson

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-01

Beschreibung: Author(s): Amany Raslan and W. A. Atkinson Multiple experiments have observed a sharp transition in the band structure of LaAlO 3 / SrTiO 3 (001) interfaces as a function of applied gate voltage. This Lifshitz transition, between a single occupied band at low electron density and multiple occupied bands at high density, is remarkable for its abr... [Phys. Rev. B 98, 195447] Published Fri Nov 30, 2018

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

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Plasmon-Assisted Resonant Electron Tunneling in a Scanning Tunneling Microscope Junction (2018)

Shuyi Liu, Martin Wolf, and Takashi Kumagai

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-12-01

Beschreibung: Author(s): Shuyi Liu, Martin Wolf, and Takashi Kumagai We report plasmon-assisted resonant electron tunneling from a Ag or Au tip to field emission resonances (FERs) of a Ag(111) surface induced by cw laser excitation of a scanning tunneling microscope (STM) junction at visible wavelengths. As a hallmark of the plasmon-assisted resonant tunneling, we ob... [Phys. Rev. Lett. 121, 226802] Published Fri Nov 30, 2018

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

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Spatial confinement, magnetic localization, and their interactions on massless Dirac fermions (2018)

Zhong-Qiu Fu, Yu Zhang, Jia-Bin Qiao, Dong-Lin Ma, Haiwen Liu, Zi-Han Guo, Yi-Cong Wei, Jing-Yi Hu, Qian Xiao, Xin-Rui Mao, and Lin He

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-04

Beschreibung: Author(s): Zhong-Qiu Fu, Yu Zhang, Jia-Bin Qiao, Dong-Lin Ma, Haiwen Liu, Zi-Han Guo, Yi-Cong Wei, Jing-Yi Hu, Qian Xiao, Xin-Rui Mao, and Lin He Understanding different approaches to confining massless Dirac fermions in graphene is of keen interest to researchers; it is also a central problem in making electronic devices based on graphene. Here, we studied spatial confinement, magnetic localization, and their interactions on massless Dirac f... [Phys. Rev. B 98, 241401(R)] Published Mon Dec 03, 2018

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

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Sign inversion in the terahertz photoconductivity of single-walled carbon nanotube films (2018)

Peter Karlsen, Mikhail V. Shuba, Polina P. Kuzhir, Albert G. Nasibulin, Patrizia Lamberti, and Euan Hendry

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-04

Beschreibung: Author(s): Peter Karlsen, Mikhail V. Shuba, Polina P. Kuzhir, Albert G. Nasibulin, Patrizia Lamberti, and Euan Hendry In recent years, there have been conflicting reports regarding the ultrafast photoconductive response of films of single walled carbon nanotubes (CNTs), which apparently exhibit photoconductivities that can differ even in sign. Here, we observe explicitly that the THz photoconductivity of CNT films ... [Phys. Rev. B 98, 241404(R)] Published Mon Dec 03, 2018

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

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Equivalent-neighbor percolation models in two dimensions: Crossover between mean-field and short-range behavior (2018)

Yunqing Ouyang, Youjin Deng, and Henk W. J. Blöte

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-04

Beschreibung: Author(s): Yunqing Ouyang, Youjin Deng, and Henk W. J. Blöte We investigate the influence of the range of interactions in the two-dimensional bond percolation model by means of Monte Carlo simulations. We locate the phase transitions for several interaction ranges, as expressed by the number z of equivalent neighbors. We also consider the z → ∞ limit, i.e., the... [Phys. Rev. E 98, 062101] Published Mon Dec 03, 2018

Schlagwort(e): Statistical Physics

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Pseudo-Goldstone Gaps and Order-by-Quantum Disorder in Frustrated Magnets (2018)

Jeffrey G. Rau, Paul A. McClarty, and Roderich Moessner

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-12-04

Beschreibung: Author(s): Jeffrey G. Rau, Paul A. McClarty, and Roderich Moessner In systems with competing interactions, continuous degeneracies can appear which are accidental, in that they are not related to any symmetry of the Hamiltonian. Accordingly, the pseudo-Goldstone modes associated with these degeneracies are also unprotected. Indeed, through a process known as “order... [Phys. Rev. Lett. 121, 237201] Published Mon Dec 03, 2018

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Twisted graphene bilayer around the first magic angle engineered by heterostrain (2018)

Jia-Bin Qiao, Long-Jing Yin, and Lin He

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-04

Beschreibung: Author(s): Jia-Bin Qiao, Long-Jing Yin, and Lin He Very recently, twisted graphene bilayers (TGBs) around the first magic angle θ ≈ 1 . 1 ∘ have attracted much attention for the realization of exotic quantum states, such as correlated insulator behavior and unconventional superconductivity. Here we elaborately study a series of TGBs around the first magi... [Phys. Rev. B 98, 235402] Published Mon Dec 03, 2018

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

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Proximity-induced spin-orbit coupling in graphene/${\mathrm{Bi}}_{1.5}{\mathrm{Sb}}_{0.5}{\mathrm{Te}}_{1.7}{\mathrm{Se}}_{1.3}$ heterostructures (2018)

S. Jafarpisheh, A. W. Cummings, K. Watanabe, T. Taniguchi, B. Beschoten, and C. Stampfer

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-04

Beschreibung: Author(s): S. Jafarpisheh, A. W. Cummings, K. Watanabe, T. Taniguchi, B. Beschoten, and C. Stampfer The weak intrinsic spin-orbit coupling in graphene can be greatly enhanced by proximity coupling. Here, we report on the proximity-induced spin-orbit coupling in graphene transferred by hexagonal boron nitride (hBN) onto the topological insulator Bi 1.5 Sb 0.5 Te 1.7 Se 1.3 (BSTS) which was grown on a hBN ... [Phys. Rev. B 98, 241402(R)] Published Mon Dec 03, 2018

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Generating macroscopic superpositions with interacting Bose-Einstein condensates: Multimode speedups and speed limits (2018)

Samuel P. Nolan and Simon A. Haine

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-12-05

Beschreibung: Author(s): Samuel P. Nolan and Simon A. Haine We theoretically investigate the effect of multimode dynamics on the creation of macroscopic superposition states (spin-cat states) in Bose-Einstein condensates via one-axis twisting. A two-component Bose-Einstein condensate naturally realizes an effective one-axis twisting interaction, under which ... [Phys. Rev. A 98, 063606] Published Tue Dec 04, 2018

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

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Quantum reflection of rare-gas atoms and clusters from a grating (2018)

G. Rojas-Lorenzo, J. Rubayo-Soneira, S. Miret-Artés, and E. Pollak

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-12-05

Beschreibung: Author(s): G. Rojas-Lorenzo, J. Rubayo-Soneira, S. Miret-Artés, and E. Pollak Quantum reflection is a universal property of atoms and molecules when scattered from surfaces in ultracold collisions. Recent experimental work has documented the quantum reflection and diffraction of He atoms, dimers, trimers, and neon atoms when reflected from a grating. Conditions for the observ... [Phys. Rev. A 98, 063604] Published Tue Dec 04, 2018

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

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Gauge-potential-induced rotation of spin-orbit-coupled Bose-Einstein condensates (2018)

Jingjing Jin, Wei Han, and Suying Zhang

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-12-05

Beschreibung: Author(s): Jingjing Jin, Wei Han, and Suying Zhang We demonstrate that a spin-orbit-coupled Bose-Einstein condensate can be effectively rotated by adding a real magnetic field to inputting gauge angular momentum, which is distinctly different from the traditional ways of rotation by stirring or Raman laser dressing to inputting canonical angular mom... [Phys. Rev. A 98, 063607] Published Tue Dec 04, 2018

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

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Duality for open fermion systems: Energy-dependent weak coupling and quantum master equations (2018)

J. Schulenborg, J. Splettstoesser, and M. R. Wegewijs

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-05

Beschreibung: Author(s): J. Schulenborg, J. Splettstoesser, and M. R. Wegewijs Open fermion systems with energy-independent bilinear coupling to a fermionic environment have been shown to obey a general duality relation [J. Schulenborg et al. , Phys. Rev. B 93 , 081411 (2016) ] which allows for a drastic simplification of time-evolution calculations. In the weak-coupling limit, ... [Phys. Rev. B 98, 235405] Published Tue Dec 04, 2018

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Dihedral-angle-corrected registry-dependent interlayer potential for multilayer graphene structures (2018)

Mingjian Wen, Stephen Carr, Shiang Fang, Efthimios Kaxiras, and Ellad B. Tadmor

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-05

Beschreibung: Author(s): Mingjian Wen, Stephen Carr, Shiang Fang, Efthimios Kaxiras, and Ellad B. Tadmor The structural relaxation of multilayer graphene is essential in describing the interesting electronic properties induced by intentional misalignment of successive layers, including the recently reported superconductivity in twisted bilayer graphene. This is difficult to accomplish without an accura... [Phys. Rev. B 98, 235404] Published Tue Dec 04, 2018

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Dependence of efficiency on the nonlinear nature of a nanomachine (2018)

Lucianno A. C. A. Defaveri, Sílvio M. Duarte Queirós, and Welles A. M. Morgado

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-06

Beschreibung: Author(s): Lucianno A. C. A. Defaveri, Sílvio M. Duarte Queirós, and Welles A. M. Morgado We establish the power output and efficiency of a single-particle nanomachine whose characteristic component is a nonlinear potential U ( r ) ∝ | r | α . We do so by considering multi-temperature “elliptic” and Carnot-like cycles. In both protocols we verify the linear case α = 2 corresponds to a threshold sit... [Phys. Rev. E 98, 062106] Published Wed Dec 05, 2018

Schlagwort(e): Statistical Physics

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Perturbing cyclic predator-prey systems: How a six-species coarsening system with nontrivial in-domain dynamics responds to sudden changes (2018)

Shadisadat Esmaeili, Barton L. Brown, and Michel Pleimling

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-06

Beschreibung: Author(s): Shadisadat Esmaeili, Barton L. Brown, and Michel Pleimling Cyclic predator-prey systems have been shown to give rise to rich, and novel, space-time patterns, as, for example, coarsening domains with nontrivial in-domain dynamics. In this work, we study numerically the responses of a cyclic six-species model, characterized by the formation of spirals inside ... [Phys. Rev. E 98, 062105] Published Wed Dec 05, 2018

Schlagwort(e): Statistical Physics

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Cavity optomagnonics with magnetic textures: Coupling a magnetic vortex to light (2018)

Jasmin Graf, Hannes Pfeifer, Florian Marquardt, and Silvia Viola Kusminskiy

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-06

Beschreibung: Author(s): Jasmin Graf, Hannes Pfeifer, Florian Marquardt, and Silvia Viola Kusminskiy A unique feature of cavity optomagnonics is the possibility of coherently coupling light to spin excitations on top of magnetic textures. Here, the authors propose a cavity-optomagnonic system with a nonhomogeneous magnetic ground state, namely, a vortex in a magnetic microdisc. Using both analytical and computational methods, they study the cavity-enhanced coupling between optical whispering gallery modes and magnon modes, localized at the vortex. The results, both in terms of value and tunability of the coupling, point to the promise of engineered optomagnonic systems for quantum information platforms. [Phys. Rev. B 98, 241406(R)] Published Wed Dec 05, 2018

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

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Enhanced performance of a quantum-dot-based nanomotor due to Coulomb interactions (2018)

María Florencia Ludovico and Massimo Capone

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-06

Beschreibung: Author(s): María Florencia Ludovico and Massimo Capone We study the relation between quantum pumping of charge and the work exchanged with the driving potentials in a strongly interacting ac -driven quantum dot. We work in the large-interaction limit and in the adiabatic pumping regime, and we develop a treatment that combines the time-dependent slave-bo... [Phys. Rev. B 98, 235409] Published Wed Dec 05, 2018

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

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Realizing an ultra-wideband backward-wave metamaterial waveguide (2018)

S. S. Seetharaman, B. Tremain, W. L. Barnes, and I. R. Hooper

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-06

Beschreibung: Author(s): S. S. Seetharaman, B. Tremain, W. L. Barnes, and I. R. Hooper Electroinductive waves have emerged as an attractive solution for designing metamaterials that support backward propagating waves. Stacked metasurfaces etched with complementary split-ring resonators (CSRRs) have also been shown to exhibit a broadband negative dispersion. We demonstrate, through exp... [Phys. Rev. B 98, 235408] Published Wed Dec 05, 2018

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

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Droplet formation in a one-dimensional system of attractive spinless fermions (2018)

Vera V. Vyborova, Oleg Lychkovskiy, and Alexey N. Rubtsov

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-06

Beschreibung: Author(s): Vera V. Vyborova, Oleg Lychkovskiy, and Alexey N. Rubtsov A translation invariant one-dimensional system of spinless fermions with a finite-range attraction experiences a quantum phase transition to a phase-separated state. While being a conventional Luttinger liquid for a small interaction strength, spinless fermions form a droplet with the size smaller t... [Phys. Rev. B 98, 235407] Published Wed Dec 05, 2018

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

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Inverse Ising inference, hyperuniformity, and absorbing states in the Manna model (2018)

Thomas Machon

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-06

Beschreibung: Author(s): Thomas Machon Using inverse Ising inference we show that the absorbing states of the one-dimensional Manna model can be described by an equilibrium model with an emergent interaction displaying short-ranged repulsion and long-ranged attraction. As the model approaches the critical point the interaction becomes pu... [Phys. Rev. E 98, 062104] Published Wed Dec 05, 2018

Schlagwort(e): Statistical Physics

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Relation between width of zero-bias anomaly and Kondo temperature in transport measurements through correlated quantum dots: Effect of asymmetric coupling to the leads (2018)

D. Pérez Daroca, P. Roura-Bas, and A. A. Aligia

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-07

Beschreibung: Author(s): D. Pérez Daroca, P. Roura-Bas, and A. A. Aligia The zero-bias anomaly at low temperatures, originated by the Kondo effect when an electric current flows through a system formed by a spin- 1 / 2 quantum dot and two metallic contacts is theoretically investigated. In particular, we compare the width of this anomaly 2 T NE with that of the Kondo resonanc... [Phys. Rev. B 98, 245406] Published Thu Dec 06, 2018

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

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Topological edge states in Rashba-Dresselhaus spin-orbit-coupled atoms in a Zeeman lattice (2018)

C. Li, F. Ye, X. Chen, Y. V. Kartashov, L. Torner, and V. V. Konotop

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-12-08

Beschreibung: Author(s): C. Li, F. Ye, X. Chen, Y. V. Kartashov, L. Torner, and V. V. Konotop We address the impact of spin-orbit coupling on the existence and properties of topological edge states of cold neutral atoms and Bose-Einstein condensates loaded in honeycomb Zeeman lattices—lattices where the spinor components are placed in potentials having opposite signs. We find that the type o... [Phys. Rev. A 98, 061601(R)] Published Fri Dec 07, 2018

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

Print ISSN: 1050-2947

Digitale ISSN: 1094-1622

Thema: Physik

Publiziert von American Physical Society (APS)

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Measuring the local gravitational field using survival resonances in a dissipatively driven atom-optics system (2018)

Shijie Chai, Julia Fekete, and Mikkel F. Andersen

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2018-12-11

Beschreibung: Author(s): Shijie Chai, Julia Fekete, and Mikkel F. Andersen We do a proof-of-principle demonstration of an atomic gravimeter based on survival resonances of dissipatively driven atoms. Exposing laser-cooled atoms to a sequence of near-resonant standing-wave light pulses reveals survival resonances when the standing-wave interference pattern accelerates. The ... [Phys. Rev. A 98, 063614] Published Mon Dec 10, 2018

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

Print ISSN: 1050-2947

Digitale ISSN: 1094-1622

Thema: Physik

Publiziert von American Physical Society (APS)

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Negative charge enhancement of near-surface nitrogen vacancy centers by multicolor excitation (2018)

I. Meirzada, Y. Hovav, S. A. Wolf, and N. Bar-Gill

American Physical Society (APS)

In: Physical Review B

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Publikationsdatum: 2018-12-12

Beschreibung: Author(s): I. Meirzada, Y. Hovav, S. A. Wolf, and N. Bar-Gill Nitrogen vacancy (NV) centers in diamond have been identified over the past few years as promising systems for a variety of applications, ranging from quantum information science to magnetic sensing. This relies on the unique optical and spin properties of the negatively charged NV. Many of these ap... [Phys. Rev. B 98, 245411] Published Tue Dec 11, 2018

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

Print ISSN: 1098-0121

Digitale ISSN: 1095-3795

Thema: Physik

Publiziert von American Physical Society (APS)

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Imaging the Local Charge Environment of Nitrogen-Vacancy Centers in Diamond (2018)

T. Mittiga, S. Hsieh, C. Zu, B. Kobrin, F. Machado, P. Bhattacharyya, N. Z. Rui, A. Jarmola, S. Choi, D. Budker, and N. Y. Yao

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2018-12-13

Beschreibung: Author(s): T. Mittiga, S. Hsieh, C. Zu, B. Kobrin, F. Machado, P. Bhattacharyya, N. Z. Rui, A. Jarmola, S. Choi, D. Budker, and N. Y. Yao Nitrogen-vacancy centers in diamond are found to be more affected by local charge than expected, which has implications for the use of the defects as quantum sensors. [Phys. Rev. Lett. 121, 246402] Published Wed Dec 12, 2018

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

Print ISSN: 0031-9007

Digitale ISSN: 1079-7114

Thema: Physik

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