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相关论文: Conserving relaxation-time approximation for elect…

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We benchmark the ground state energies and the density profiles of atomic repulsive Fermi gases in optical lattices computed via Density Functional Theory (DFT) against the results of diffusion Monte Carlo (DMC) simulations. The main focus…

量子气体 · 物理学 2018-06-12 S. Pilati , I. Zintchenko , M. Troyer , F. Ancilotto

We derive a general expression for the conductivity of a disordered conductor with electron-electron interactions (treated within the standard model) and evaluate the weak localization correction delta sigma_{wl} employing no approximations…

介观与纳米尺度物理 · 物理学 2007-05-23 Dmitri S. Golubev , Andrei D. Zaikin

In the organic superconducting \kappa-(BEDT-TTF) compounds, various transport phenomena exhibit striking non-Fermi liquid behaviors, which should be the important clues to understanding the electronic state of this system. Especially, the…

超导电性 · 物理学 2009-10-31 H. Kontani , H. Kino

Quantum corrections to Thomas-Fermi (TF) theory are investigated for noninteracting one-dimensional fermions with known uniform semiclassical approximations to the density and kinetic energy. Their structure is analyzed, and contributions…

量子气体 · 物理学 2017-03-15 Raphael F. Ribeiro , Kieron Burke

We find a near detailed balance solution to the relativistic Boltzmann equation under the relaxation time approximation with a collision term which differs from the Anderson-Witting model and is dependent on the stationary observer. Using…

广义相对论与量子宇宙学 · 物理学 2022-12-08 Song Liu , Xin Hao , Shaofan Liu , Liu Zhao

We derive and evaluate expressions for the dc tunneling conductance between interacting two-dimensional electron systems at non-zero temperature. The possibility of using the dependence of the tunneling conductance on voltage and…

凝聚态物理 · 物理学 2009-10-28 T. Jungwirth , A. H. MacDonald

Conformal field theory (CFT) has been extremely successful in describing large-scale universal effects in one-dimensional (1D) systems at quantum critical points. Unfortunately, its applicability in condensed matter physics has been limited…

强关联电子 · 物理学 2017-02-15 Jérôme Dubail , Jean-Marie Stéphan , Jacopo Viti , Pasquale Calabrese

The non-equilibrium dynamics of electrons is of a great experimental and theoretical value providing important microscopic parameters of the Coulomb and electron-phonon interactions in metals and other cold plasmas. Because of the…

超导电性 · 物理学 2008-11-19 V. V. Kabanov , A. S. Alexandrov

The weakness of electron-electron correlations in the itinerant antiferromagnet Cr doped with V has long been considered the reason that neither new collective electronic states or even non Fermi liquid behaviour are observed when…

强关联电子 · 物理学 2014-08-13 D. A. Sokolov , M. C. Aronson , L. Wu , Y. Zhu , C. Nelson , J. F. Mansfield , K. Sun , R. Erwin , J. W. Lynn , M. Lumsden , S. E. Nagler

We derive an energy density functional for non-relativistic spin one-half fermions in the limit of a divergent two-body scattering length. Using an epsilon expansion around d=4-epsilon spatial dimensions we compute the coefficient of the…

核理论 · 物理学 2009-03-24 Gautam Rupak , Thomas Schaefer

Luttinger semimetals have quadratic band crossings at the Brillouin zone-center in three spatial dimensions. Coulomb interactions in a model that describes these systems stabilize a non-trivial fixed point associated with a non-Fermi liquid…

强关联电子 · 物理学 2022-07-12 Ipsita Mandal , Hermann Freire

Energy-transport equations for the transport of fermions in optical lattices are formally derived from a Boltzmann transport equation with a periodic lattice potential in the diffusive limit. The limit model possesses a formal gradient-flow…

偏微分方程分析 · 数学 2017-04-11 Marcel Braukhoff , Ansgar Jüngel

In this paper we develop a framework for moment-based adaptive time integration of deterministic multifrequency thermal radiation transpot (TRT). We generalize our recent semi-implicit-explicit (IMEX) integration framework for gray TRT to…

数值分析 · 数学 2026-02-11 Ben S. Southworth , Steven Walton , Steven B. Roberts , HyeongKae Park

We propose a relaxation time approximation for the description of the dynamics of strongly excited fermion systems. Our approach is based on time-dependent density functional theory at the level of the local density approximation. This…

原子与分子团簇 · 物理学 2016-01-26 P. -G. Reinhard , E. Suraud

In this paper, we develop an approximate theory of the temperature coefficient of resistivity (TCR) and conductivity based upon the recently proposed Microscopic Response Method. By introducing suitable approximations for the lattice…

统计力学 · 物理学 2015-06-03 Ming-Liang Zhang , D. A. Drabold

We propose a theory of longitudinal resistivity in the normal phase of quasi-one-dimensional organic superconductors near the quantum critical point where antiferromagnetism borders with superconductivity under pressure. The linearized…

强关联电子 · 物理学 2016-03-22 M. Shahbazi , C. Bourbonnais

Studies of thermal transport in long-range (LR)interacting systems are currently particularly challenging. The main difficulties lie in the choice of boundary conditions and the definition of heat current when driving systems in an…

统计力学 · 物理学 2020-02-25 Jianjin Wang , Sergey V. Dmitriev , Daxing Xiong

The dynamic response of an interacting electron system is determined by an extension of the relaxation-time approximation forced to obey local conservation laws for number, momentum and energy. A consequence of these imposed constraints is…

强关联电子 · 物理学 2009-11-07 G. S. Atwal , N. W. Ashcroft

We report results of large-scale quantum Monte Carlo (QMC) simulations of graphene. Using cutting-edge algorithmic improvements, we are able to consider spatial volumes, corresponding to 20808 electrons, that allow us to access energy…

强关联电子 · 物理学 2023-11-21 Maksim Ulybyshev , Savvas Zafeiropoulos , Christopher Winterowd , Fakher Assaad

A general formalism for the treatment of density fluctuations in Coulomb plasmas is presented and applied to the treatment of temperature relaxation in multi-component quantum plasmas when the separate components (electrons and ions) relax…

等离子体物理 · 物理学 2015-10-06 Basil Crowley