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We display an interesting sum rule for the dynamical thermal conductivity for many standard models of condensed matter in terms of the expectation of a thermal operator. We present the thermal operator for several model systems of current…

强关联电子 · 物理学 2009-11-11 B Sriram Shastry

We investigate the thermodynamic properties of a single inertial probe driven into a nonequilibrium steady-state by random collisions with self-propelled active walkers. The probe and walkers are confined within a gravitational harmonic…

统计力学 · 物理学 2026-01-13 Dima Boriskovsky , Rémi Goerlich , Benjamin Lindner , Yael Roichman

This article concerns the mathematical justification of an averaged system of partial differential equations governing the evolution of a two-phase mixture of compressible ideal fluids, with viscosity and without conductivity, in space…

偏微分方程分析 · 数学 2025-12-08 D Bresch , C Burtea , P Gonin--Joubert , F Lagoutière

The integrable system is constrained strictly by the conservation law during the time evolution, and the nearly integrable system or nonintegrable system is also constrained by the conserved parameters (like the constants of motion) with…

统计力学 · 物理学 2017-11-10 Chen-Huan Wu

The efficiency of microscopic heat engines in a thermally heterogenous environment is considered. We show that, as a consequence of the recently discovered entropic anomaly, quasi-static engines, whose efficiency is maximal in a fluid at…

统计力学 · 物理学 2015-06-12 Stefano Bo , Antonio Celani

A theoretical description of quantum mechanical steady states is developed. Applications for simple quantum mechanical systems described in terms of coupled level structures yield a formulation equivalent to time independent scattering…

凝聚态物理 · 物理学 2009-11-07 D. Segal , A. Nitzan

In this paper, we present first-order accurate numerical methods for solution of the heat equation with uncertain temperature-dependent thermal conductivity. Each algorithm yields a shared coefficient matrix for the ensemble set improving…

数值分析 · 数学 2021-06-08 J. A. Fiordilino , M. Winger

A crucial assumption in the conventional description of thermal conduction is the existence of local thermal equilibrium. We test this assumption in two simple models of heat conduction. Our first model is a linear chain of planar spins…

统计力学 · 物理学 2009-10-31 Abhishek Dhar , Deepak Dhar

We examine the temperature dependence of the optical sum rule in the normal state due to interactions. To be concrete we adopt a weak coupling approach which uses an electron-boson exchange model to describe inelastic scattering of the…

强关联电子 · 物理学 2007-05-23 L. Benfatto , J. P. Carbotte , F. Marsiglio

Following the proposal of steady state thermodynamics (SST) by Oono and Paniconi, we develop a phenomenological theory for steady nonequilibrium states in systems with heat conduction. We find that there is essentially a unique consistent…

统计力学 · 物理学 2007-05-23 Shin-ichi Sasa , Hal Tasaki

In this paper we consider a transmission problem for a system of a thermoelastic plate with (or without) rotational inertia term coupled with a membrane with different variants of damping for the plate and/or the membrane. We prove…

Comparison of the thermodynamic entropy with Boltzmann's principle shows that under conditions of constant volume the total number of arrangements in simple thermodynamic systems with temperature-independent heat capacities is TC/k. A…

综合物理 · 物理学 2009-11-13 David Sands

We investigate the stationary nonequilibrium states of a quasi one-dimensional system of heavy particles whose interaction is mediated by purely elastic collisions with light particles, in contact at the boundary with two heat baths with…

统计力学 · 物理学 2009-11-10 Christian Gruber , Annick Lesne

We study a distribution of thermal states given by random Hamiltonians with a local structure. We show that the ensemble of thermal states monotonically approaches the unitarily invariant ensemble with decreasing temperature if all…

量子物理 · 物理学 2014-12-03 Yoshifumi Nakata , Tobias J. Osborne

We investigate a simplified model of two fully connected magnetic systems maintained at different temperatures by virtue of being connected to two independent thermal baths while simultaneously being inter-connected with each other. Using…

统计力学 · 物理学 2015-06-15 Roberto C. Alamino , Amit Chattopadhyay , David Saad

Translation-invariant low-dimensional systems are known to exhibit anomalous heat transport. However, there are systems, such as the coupled-rotor chain, where translation invariance is satisfied, yet transport remains diffusive. It has…

统计力学 · 物理学 2023-07-12 Piero Olla

We study the system of nonisentropic thermoelasticity describing the motion of thermoelastic nonconductors of heat in two and three spatial dimensions, where the frame-indifferent constitutive relation generalizes that for compressible…

偏微分方程分析 · 数学 2020-09-24 Gui-Qiang G. Chen , Paolo Secchi , Tao Wang

The thermodynamical model of viscoelastic deformable solids at finite strains with Kelvin-Voigt rheology with a higher-order viscosity (using the concept of multipolar materials) is formulated in a fully Eulerian way in rates. Assumptions…

偏微分方程分析 · 数学 2025-02-05 Tomáš Roubíček

Thermo-elastic behavior of perfect single crystal is considered. The crystal is represented as a set of interacting particles (atoms). The approach for determination of equivalent continuum values for the discrete system is proposed.…

材料科学 · 物理学 2013-10-11 V. A. Kuzkin , A. M. Krivtsov

We study the existence and properties of the non-equilibrium steady state which arises by putting two copies of systems at different temperatures into a thermal contact. We solve the problem for the relativistic systems that are described…

统计力学 · 物理学 2016-03-23 Razieh Pourhasan