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相关论文: Dynamical current-current correlation in the two-d…

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We consider heat transfer in one-dimensional systems with long-range interactions. It is known that typical short-range interacting systems shows anomalous behavior in heat transport when total momentum is conserved, whereas…

统计力学 · 物理学 2020-05-04 Shuji Tamaki , Keiji Saito

Self-consistent correlation potentials for H$_2$ and LiH for various inter-atomic separations are obtained within the random phase approximation (RPA) of density functional theory. The RPA correlation potential shows a peak at the bond…

化学物理 · 物理学 2015-05-30 M. Hellgren , D. R. Rohr , E. K. U. Gross

Using a dynamic cluster quantum Monte Carlo approximation, we study a two-dimensional Hubbard model with a small orthorhombic distortion in the nearest neighbor hopping integrals. We find a large nematic response in the low-frequency…

超导电性 · 物理学 2015-05-30 Shi-Quan Su , Thomas A. Maier

Converse effect of spin photocurrent and current induced spin polarization are experimentally demonstrated in the same two-dimensional electron gas system with Rashba spin splitting. Their consistency with the strength of the Rashba…

介观与纳米尺度物理 · 物理学 2009-11-11 C. L. Yang , H. T. He , Lu Ding , L. J. Cui , Y. P. Zeng , J. N. Wang , W. K. Ge

Persistent currents flowing through disordered mesoscopic rings threaded by a magnetic flux are investigated. Models of fermions with on-site interactions (Hubbard model) or models of spinless fermions with nearest neighbor interactions are…

凝聚态物理 · 物理学 2007-05-23 Georges Bouzerar , Didier Poilblanc

The planar quantum dynamics of spin-1/2 neutral particle interacting with electrical fields is considered. A set of first order differential equations are obtained directly from the planar Dirac equation with nonminimum coupling. New…

高能物理 - 理论 · 物理学 2015-09-10 F. S. Azevedo , Edilberto O. Silva , Luis B. Castro , Cleverson Filgueiras , D. Cogollo

We compute the diagrammatic expansion of the particle-particle susceptibility via algorithmic Matsubara integration and compute the correlated pairing susceptibility in the thermodynamic limit of the 2D Hubbard Model. We study the static…

强关联电子 · 物理学 2023-06-06 Rayan Farid , Maxence Grandadam , J. P. F. LeBlanc

We consider diffusive lattice gases on a ring and analyze the stability of their density profiles conditionally to a current deviation. Depending on the current, one observes a phase transition between a regime where the density remains…

统计力学 · 物理学 2009-11-11 T. Bodineau , B. Derrida

The local persistent current in two dimensional strongly interacting systems is investigated. As the interaction strength is enhanced the current in the sample undergoes a transition from diffusive to ordered flow. The strong interacting…

介观与纳米尺度物理 · 物理学 2009-10-31 Richard Berkovits , Yshai Avishai

We investigate the properties of persistent charge current driven by magnetic flux in a quasi-periodic mesoscopic Fibonacci ring with Rashba and Dresselhaus spin-orbit interactions. Within a tight-binding framework we work out individual…

介观与纳米尺度物理 · 物理学 2016-04-11 Moumita Patra , Santanu K. Maiti

In Dirac materials, the low energy excitations obey the relativistic Dirac equation. This dependence implies that the electrons are exposed to strong spin-orbit coupling. Hence, real spin conservation is believed to be violated in Dirac…

介观与纳米尺度物理 · 物理学 2019-05-27 Vanessa Werner , Björn Trauzettel , Oleksiy Kashuba

The static current operator leads to definitional zero frequency divergence and unphysical results in studying nonlinear optical susceptibilities of polymers. A well-defined dipole-dipole correlation is superior to the complicated…

强关联电子 · 物理学 2007-05-23 Minzhong Xu , Xin Sun

We derive relativistic hydrodynamic equations with a dynamical spin degree of freedom on the basis of an entropy-current analysis. The first and second laws of local thermodynamics constrain possible structures of the constitutive relations…

高能物理 - 理论 · 物理学 2019-07-03 Koichi Hattori , Masaru Hongo , Xu-Guang Huang , Mamoru Matsuo , Hidetoshi Taya

We show that density functional theory within the RPA (random phase approximation for the exchange-correlation energy) provides a correct description of bond dissociation in H$_2$ in a spin-restricted Kohn-Sham formalism, i.e. without…

其他凝聚态物理 · 物理学 2009-11-10 M. Fuchs , Y. -M. Niquet , X. Gonze , K. Burke

We study the k-space fluctuations of the waveaction about its mean spectrum in the turbulence of dispersive waves. We use a minimal model based on the Random Phase Approximation (RPA) and derive evolution equations for the arbitrary-order…

数学物理 · 物理学 2009-11-10 Yuri V. Lvov , Sergey Nazarenko

We study the RKKY interaction between two magnetic impurities located on the surface of a three-dimensional Dirac semimetal with two Dirac nodes in the band structure. By taking into account both bulk and surface contributions to the…

介观与纳米尺度物理 · 物理学 2019-04-05 V. Kaladzhyan , A. A. Zyuzin , P. Simon

We investigate the asymptotic properties of the large deviation function of the integrated particle current in systems, in or out of thermal equilibrium, whose dynamics exhibits anomalous diffusion. The physical systems covered by our study…

统计力学 · 物理学 2011-11-29 Vivien Lecomte , Uwe C. Tauber , Frederic van Wijland

In this report, we present a dynamical systems' approach to study the exact nonlinear wave-particle interaction in relativistic regime. We give a particular attention to the effect of wave obliquity on the dynamics of the orbits by studying…

等离子体物理 · 物理学 2012-03-13 A. Osmane , A. M. Hamza

We study large deviations for the current of one-dimensional stochastic particle systems with periodic boundary conditions. Following a recent approach based on an earlier result by Jensen and Varadhan, we compare several candidates for…

统计力学 · 物理学 2018-10-02 Paul Chleboun , Stefan Grosskinsky , Andrea Pizzoferrato

We consider a spin-1/2 anisotropic XY model with time-dependent spin-spin coupling as means of creating long-distance entanglement. We predict the emergence of significant entanglement between the first and the last spin whenever the ac…

量子物理 · 物理学 2009-03-29 Fernando Galve , David Zueco , Sigmund Kohler , Eric Lutz , Peter Hänggi