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相关论文: Thermal currents in highly correlated systems

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We demonstrate the role of proximity effect in the thermal hysteresis of superconducting constrictions. From the analysis of successive thermal instabilities in the transport characteristics of micron-size superconducting quantum…

超导电性 · 物理学 2015-06-05 Nikhil Kumar , T. Fournier , H. Courtois , C. B. Winkelmann , Anjan K. Gupta

Thermodynamic perturbation theory is employed to derive analytical expressions for the equilibrium linear susceptibility and specific heat of lattices of anisotropic classical spins weakly coupled by the dipole-dipole interaction. The…

材料科学 · 物理学 2009-11-07 P. E. Jönsson , J. L. Garcia-Palacios

We theoretically investigate the propagation of heat currents in a three-terminal quantum dot engine. Electron-electron interactions introduce state-dependent processes which can be resolved by energy-dependent tunneling rates. We identify…

介观与纳米尺度物理 · 物理学 2017-11-30 Rafael Sánchez , Holger Thierschmann , Laurens W. Molenkamp

Just as correlations between fluctuating radial and azimuthal velocities produce a coherent stress contributing to the angular momentum transport in turbulent accretion disks, correlations in the velocity and temperature fluctuations…

天体物理学 · 物理学 2009-11-07 Steven A. Balbus

We derive a universal bound on the large-deviation functions of particle currents in coherent conductors. This bound depends only on the mean value of the relevant current and the total rate of entropy production required to maintain a…

统计力学 · 物理学 2025-10-24 Kay Brandner , Keiji Saito

We consider mesoscopic thermal transport between two bulk dielectrics joined by a narrow wire or weak mechanical link. In the ``tunneling'' regime where the phonon transmission probability through the link is small and the thermal…

介观与纳米尺度物理 · 物理学 2009-11-07 Michael R. Geller , Kelly R. Patton

In this perspective, we discuss thermal imbalance and the associated electron-mediated thermal transport in quantum electronic devices at very low temperatures. We first present the theoretical approaches describing heat transport in…

介观与纳米尺度物理 · 物理学 2024-04-09 Danial Majidi , Justin P. Bergfield , Ville Maisi , Johannes Höfer , Hervé Courtois , Clemens B. Winkelmann

Anisotropic heat transfer offers promising solutions to the efficient heat dissipation in the realm of electronic device thermal management. However, the fundamental origin of the anisotropy of thermal transport remains mysterious. In this…

应用物理 · 物理学 2024-12-25 Qikun Tian , Qi Yang , An Huang , Bo Peng , Jinbo Zhang , Xiong Zheng , Jian Zhou , Zhenzhen Qin , Guangzhao Qin

A normal-diffusion theory for heat transfer in many-body systems via carriers of thermal photons is developed. The thermal conductivity tensor is rigorously derived from fluctuational electrodynamics as a coefficient of diffusion term for…

应用物理 · 物理学 2022-11-04 Minggang Luo , Junming Zhao , Linhua Liu

For a non-superconducting system, the electronic tunneling current through an insulating barrier is calculated, including interaction effects. The exact Hamiltonian of the full system is projected onto the subspaces of the "left" and…

介观与纳米尺度物理 · 物理学 2010-07-09 Kelly R. Patton

We analyze the heat transfer between two nanoparticles separated by a distance lying in the near-field domain in which energy interchange is due to Coulomb interactions. The thermal conductance is computed by assuming that the particles…

材料科学 · 物理学 2008-04-18 Agustin Pérez-Madrid , José M. Rubí , Luciano C. Lapas

Various causes for negative differential conductance in transport through an interacting double quantum dot are investigated. Particular focus is given to the interplay between the renormalization of the energy levels due to the coupling to…

介观与纳米尺度物理 · 物理学 2011-11-09 Jonas Nyvold Pedersen , Benny Lassen , Andreas Wacker , Matthias H. Hettler

A neurophysiological thesis is proposed for thermal sensitivity that accounts for the disorder in physical processes that is fundamental to temperature. There is likely some form of thermal equilibrium rapidly established between…

综合物理 · 物理学 2007-05-23 D. M. Snyder

Thermal conductivity of hadron matter is studied using a microscopic transport model, which will be used to simulate ultra-relativistic heavy ion collisions at different energy densities, namely the Ultra-relativistic Quantum Molecular…

核理论 · 物理学 2016-04-27 T. E Nemakhavhani , A. Muronga

Numerical calculations of anisotropic hopping transport based on the resistor network model are presented. Conductivity is shown to follow the stretched exponential dependence on temperature with exponents changing from 1/4 to 1 as the wave…

介观与纳米尺度物理 · 物理学 2016-11-09 S. Ihnatsenka

We present a comprehensive study of heat transport through small superconducting point contacts. The heat current for a temperature biased weak link is computed as a function of temperature and barrier transparency of the junction. The…

超导电性 · 物理学 2009-11-10 Erhai Zhao , Tomas Lofwander , J. A. Sauls

Thermal transport through nanosystems is central to numerous processes in chemistry, material sciences, electrical and mechanical engineering, with classical molecular dynamics as the key simulation tool. Here we focus on thermal junctions…

介观与纳米尺度物理 · 物理学 2020-08-31 Na'im Kalantar , Bijay Kumar Agarwalla , Dvira Segal

Superconductors like other solids cannot relax instantaneously from excited states to thermodynamic equilibrium. In this paper, relaxation from thermal excitations is investigated, like after absorption of radiation or, under conductor…

超导电性 · 物理学 2021-11-19 Harald Reiss

Motivated by recent experiments (Subero et. al. Nature Comm. $\bf{14}$, 7924 (2023)) we analyze photonic heat transport through a Josephson junction in a dissipative environment. For this purpose we derive general expressions for the heat…

介观与纳米尺度物理 · 物理学 2026-03-04 A. Levy Yeyati , D. Subero , J. Pekola , R. Sánchez

The decay of current autocorrelation functions is investigated for quantum systems featuring strong 'interactions'. Here, the term interaction refers to that part of the Hamiltonian causing the (major) decay of the current. On the time…

统计力学 · 物理学 2011-07-27 Robin Steinigeweg