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相关论文: Magnetically Induced Thermal Rectification

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Since the charged mode is much faster than the neutral modes on quantum Hall edges at large filling factors, the edge may remain out of equilibrium in thermal conductance experiments. This sheds light on the observed imperfect quantization…

介观与纳米尺度物理 · 物理学 2019-03-04 Ken K. W. Ma , D. E. Feldman

Thermal rectification and heat amplification are investigated in a nonequilibrium V-type three-level system with quantum interference. By applying the Redfield master equation combined with full counting statistics, we analyze the steady…

量子物理 · 物理学 2019-04-10 Chen Wang , Dazhi Xu , Huan Liu , Xianlong Gao

We study the thermal ensemble of a gas of free strings in presence of a magnetic field. We find that the thermodynamical partition function diverges when the magnetic field exceeds some critical value $B_{\rm cr}$, which depends on the…

高能物理 - 理论 · 物理学 2009-10-28 J. G. Russo

In this article, we study the thermalizability of a system consisting of two atoms in a circular, transversely harmonic waveguide in the multimode regime. While showing some signatures of the quantum-chaotic behavior, the system fails to…

原子物理 · 物理学 2010-06-01 V. A. Yurovsky , M. Olshanii

Thermal rectification and negative differential thermal conductance were realized in harmonic chains in this work. We used the generalized Caldeira-Leggett model to study the heat flow. In contrast to the most previous studies considering…

统计力学 · 物理学 2017-06-16 Yi Ming , Hui-Min Li , Ze-Jun Ding

This work is devoted to the investigation of nontrivial transport properties in many-body quantum systems. Precisely, we study transport in the steady state of spin-1/2 Heisenberg XXZ chains, driven out of equilibrium by two magnetic baths…

统计力学 · 物理学 2020-03-20 Alberto L. de Paula , Emmanuel Pereira , Raphael C. Drumond , M. C. O. Aguiar

We study heat conduction in (n, 0)/(2n, 0) intramolecular junctions by using molecular dynamics method. It is found that the heat conduction is asymmetric, namely, heat transports preferably in one direction. This phenomenon is also called…

介观与纳米尺度物理 · 物理学 2007-08-18 Gang Wu , Baowen Li

The importance of implementing a proper regularization procedure in order to treat thermo and magnetic contributions within nonrenormalizable theories is investigated. Our study suggests that potential divergences should be isolated into…

高能物理 - 唯象学 · 物理学 2021-03-19 Sidney S. Avancini , Ricardo L. S. Farias , Marcus B. Pinto , Tulio E. Restrepo , William R. Tavares

Temperature changes affect the coercivity of permanent magnets, thereby impacting the $Bl$ factor and potentially introducing systematic errors in Kibble balance measurements. While the thermal-magnetic effect is negligible in large magnet…

仪器与探测器 · 物理学 2025-02-12 Weibo Liu , Stephan Schlamminger , Shisong Li

Using numerical methods, we systematically study in the framework of ideal MHD the effect of magnetic fields on heat transfer within a turbulent gas. We measure the rates of passive scalar diffusion within magnetized fluids and make the…

天体物理学 · 物理学 2009-11-07 J. Cho , A. Lazarian , A. Honein , B. Knaepen , S. Kassinos , P. Moin

The explicit thermodynamic functions, in particular, the specific heat of a spin system interacting with a spin bath which exerts finite dissipation on the system are determined. We show that the specific heat is a sum of the products of a…

量子物理 · 物理学 2013-04-29 Sudarson Sekhar Sinha , Arnab Ghosh , Deb Shankar Ray

We study the equilibrium temperature distribution in a model for strongly magnetized plasmas in dimension two and higher. Provided the magnetic field is sufficiently structured (integrable in the sense that it is fibered by co-dimension one…

偏微分方程分析 · 数学 2022-10-19 Theodore D. Drivas , Daniel Ginsberg , Hezekiah Grayer

A physical system connected to two thermal reservoirs at different temperatures is said to act as a heat rectifier when it is able to bias the heat current in a given direction, similarly to an electronic diode. We propose to quantify the…

Anomalous magnetothermal effects are discussed in the spin-1/2 Heisenberg chain. The energy current is related to one of the non-trivial conserved quantities underlying integrability and therefore both the diagonal and off diagonal…

统计力学 · 物理学 2015-06-24 Kazumitsu Sakai , Andreas Klumper

We investigate nonlinear thermal transport properties of a single interacting quantum dot with two energy levels tunnel-coupled to two electrodes using nonequilibrium Green function method and Hartree-Fock decoupling approximation. In the…

介观与纳米尺度物理 · 物理学 2009-11-13 Chen Xue-Ou , Bing Dong , X. L. Lei

We explore the possibility of obtaining unidirectional current in a symmetric (periodic) potential system without the application of any obvious (apparent) externally applied bias. There are many physical models proposed to accomplish this…

统计力学 · 物理学 2007-05-23 A. M. Jayannavar

We investigate the thermal responses of a harmonic oscillator chain coupled at its boundaries to heat baths held at different temperatures. This setup sustains a steady energy flux, continuously dissipating heat into both reservoirs. By…

统计力学 · 物理学 2026-04-16 Michiel Gautama , Faezeh Khodabandehlou , Christian Maes , Ion Santra

We study heat transport in a one-dimensional inhomogeneous quantum spin 1/2 system. It consists of a finite-size XX spin chain coupled at its ends to semi-infinite XX and XY chains at different temperatures, which play the role of heat and…

强关联电子 · 物理学 2015-05-13 Liliana Arrachea , Gustavo S. Lozano , A. A. Aligia

We summarize and extend some of the results obtained recently for the microscopic and macroscopic behavior of a pinned harmonic chain, with random velocity flips at Poissonian times, acted on by a periodic force {at one end} and in contact…

统计力学 · 物理学 2023-05-17 Tomasz Komorowski , Joel Lebowitz , Stefano Olla , Marielle Simon

We discuss the temperature correction to the Casimir force between nonideal metallic bodies which caused disagreement in the literature. A general method to find the troubling term is proposed that does not require a direct reference to the…

量子物理 · 物理学 2009-11-07 V. B. Svetovoy , M. V. Lokhanin