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相关论文: New exact results for the two-phase model with sev…

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In a previous paper (Paper I) we developed a technique for exactly solving the linearized Boltzmann equation for the electrical and thermal transport coefficients in metals in the low-temperature limit. Here we adapt this technique to…

统计力学 · 物理学 2021-01-04 J. Amarel , D. Belitz , T. R. Kirkpatrick

Some relevant transport properties of solids do not depend only on the spectrum of the electronic Hamiltonian, but on finer properties preserved only by unitary equivalence, the most striking example being the conductance. When interested…

数学物理 · 物理学 2010-07-28 Giuseppe De Nittis , Gianluca Panati

The linear response of two-dimensional electron gas in a perpendicular magnetic field in the presence of a spatially dependent classically smooth electrostatic potential is studied theoretically, by application of the Kubo formula for…

介观与纳米尺度物理 · 物理学 2020-06-23 O. E. Raichev

Thin layers of topological insulator materials are quasi-two-dimensional systems featuring a complex interplay between quantum confinement and topological band structure. To understand the role of the spatial distribution of carriers in…

材料科学 · 物理学 2020-03-02 Martin P. Stehno , Prosper Ngabonziza , Hiroaki Myoren , Alexander Brinkman

By using a first-principles approach, monolayer PbI$_2$ is found to have great potential in thermoelectric applications. The linear Boltzmann transport equation is applied to obtain the perturbation to the electron distribution by different…

材料科学 · 物理学 2021-05-24 Bo Peng , Haodong Mei , Hao Zhang , Hezhu Shao , Ke Xu , Gang Ni , Qingyuan Jin , Costas M. Soukoulis , Heyuan Zhu

Using a composite fermion picture, we study the lateral transport between two two-dimensional electron gases, at filling factor 1/2, separated by a potential barrier. In the mean field approximation, composite fermions far from the barrier…

凝聚态物理 · 物理学 2009-10-28 L. Brey , C. Tejedor

We investigate the conductivity in layered metals in magnetic field in the weakly incoherent limit, when the interlayer transfer integral is smaller than the Landau level broadening due to the impurity potential, but the interlayer electron…

介观与纳米尺度物理 · 物理学 2011-11-11 Pavel D. Grigoriev

We apply the semi-classical quantum Boltzmann formalism for the computation of transport properties to multilayer graphene. We compute the electrical conductivity as well as the thermal conductivity and thermopower for Bernal-stacked…

介观与纳米尺度物理 · 物理学 2020-07-01 Glenn Wagner , Dung X. Nguyen , Steven H. Simon

We use Monte Carlo simulations to investigate the thermodynamical behaviour of aggregates consisting of few superparamagnetic particles in a colloidal suspension. The potential energy surface of this classical two-level system with a stable…

Thermoelectric transport involving an arbitrary number of terminals is discussed in the presence of a magnetic field breaking time-reversal symmetry within the linear response regime using the Landauer-B\"uttiker formalism. We derive a…

统计力学 · 物理学 2013-10-14 Kay Brandner , Udo Seifert

We investigate the magnetic behavior of finite-temperature repulsive two-component Bose mixtures by means of exact path-integral Monte-Carlo simulations. Novel algorithms are implemented for the free energy and the chemical potential of the…

量子气体 · 物理学 2023-10-23 G. Spada , L. Parisi , G. Pascual , N. G. Parker , T. P. Billam , S. Pilati , J. Boronat , S. Giorgini

The thermal transport properties of a two dimensional Fermi gas are explored, for the full range of temperatures and densities. The heat flux is established by solving the Uehling-Uhlebeck equation using a relaxation approximation given by…

统计力学 · 物理学 2020-01-29 A. R. Méndez , A. L. García-Perciante , G. Chacón-Acosta

We generalize the fermionic renormalization group method to describe analytically transport through a double barrier structure in a one-dimensional system. Focusing on the case of weakly interacting electrons, we investigate thoroughly the…

强关联电子 · 物理学 2009-11-07 D. G. Polyakov , I. V. Gornyi

We model strange metals as quantum liquids without quasiparticle excitations, but with slow momentum relaxation, and with slow diffusive dynamics of a conserved charge and energy. General expressions are obtained for electrical, thermal and…

强关联电子 · 物理学 2015-05-20 Andrew Lucas , Subir Sachdev

A treatment of frictional Coulomb drag between two 2-dimensional electron layers in a strong perpendicular magnetic field, within the independent electron picture, is presented. Assuming fully resolved Landau levels, the linear response…

凝聚态物理 · 物理学 2009-10-30 M. C. Bonsager , K. Flensberg , B. Y-K. Hu , A. -P. Jauho

We show that an arbitrary spatial distribution of complex refractive index inside an object can be exactly represented as a sum of two "monomorphous" complex distributions, i.e. the distributions with the ratios of the real part to the…

医学物理 · 物理学 2015-12-09 T. E. Gureyev , Ya. I. Nesterets

A simple vibrational model of heat transfer in two-dimensional (2D) fluids relates the heat conductivity coefficient to the longitudinal and transverse sound velocities, specific heat, and the mean interatomic separation. This model is…

等离子体物理 · 物理学 2021-01-15 Sergey Khrapak

We initiate a study of finite temperature transport in gapless and strongly coupled quantum theories with charge and dipole conservation using gauge-gravity duality. In a model with non-dynamical gravity, the bulk fields of our model…

高能物理 - 理论 · 物理学 2020-12-29 Koushik Ganesan , Andrew Lucas

We study the electronic transport in the lowest Landau level of disordered two-dimensional semimetals placed in a homogeneous perpendicular magnetic field. The material system is modeled by the Bernevig-Hughes-Zhang Hamiltonian, which has…

介观与纳米尺度物理 · 物理学 2022-06-22 Andreas Sinner , Gregor Tkachov

We study heat transport and thermoelectric effects in two-dimensional superconductors in a magnetic field. These are modeled as granular Josephson-junction arrays, forming either regular or random lattices. We employ two different models…

超导电性 · 物理学 2011-05-05 Andreas Andersson , Jack Lidmar