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相关论文: Atomic Radiative Transitions in Thermo Field Dynam…

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A survey of the stability of matter problem is given, starting with the stability of the hydrogen atom. The stablity of bulk matter with Coulomb potentials, with or without relativistic mechanics, and with or without magnetic fields is…

数学物理 · 物理学 2007-05-23 Elliott H. Lieb

The traditional approach to studying near-field thermal transfer is based on fluctuational electrodynamics. However, this approach may not be suitable for nonequilibrium states due to dynamic drivings. In our work, we introduce a…

介观与纳米尺度物理 · 物理学 2024-02-26 Gaomin Tang , Jian-Sheng Wang

We study valence fluctuation at finite temperatures in the periodic Anderson model with the Coulomb interaction between $f$ and conduction electons, combining dynamical mean-field theory with the non-crossing approximation. It is found that…

强关联电子 · 物理学 2014-11-10 Yuhei Kojima , Akihisa Koga

The quantum oscillator thermodynamic actions are the conjugate intensive parameters for the frequency in any frequency changing process. These oscillator actions fulfill simple Riccati equations. Interesting Darboux transformations of the…

数学物理 · 物理学 2009-11-07 H. C. Rosu

Gauge theory requires physical observables to be gauge-independent. However, ever since Lamb noticed the problem of gauge selection in calculating atomic spontaneous radiation spectrum, the problem of gauge dependence was encountered in…

原子物理 · 物理学 2023-09-14 Xue-Nan Chen , Yu-Hang Luo , Xiang-Song Chen

The thermal properties of asymmetric nuclear matter are investigated in a relativistic mean- field approach. We start from free space NN-interactions and derive in-medium self-energies by Dirac-Brueckner theory. By the DDRH procedure we…

核理论 · 物理学 2015-03-11 Andreas Fedoseew , Horst Lenske

We study the heat conductivity in Anderson insulators in the presence of power-law interaction. Particle-hole excitations built on localized electron states are viewed as two-level systems randomly distributed in space and energy and…

无序系统与神经网络 · 物理学 2016-06-24 D. B. Gutman , I. V. Protopopov , A. L. Burin , I. V. Gornyi , R. A. Santos , A. D. Mirlin

We present a covariantly stable first-order framework for describing charge and heat transport in isotropic rigid media embedded in curved spacetime. Working in the Lorenz gauge, we show that the associated initial value problem is both…

广义相对论与量子宇宙学 · 物理学 2026-03-26 Lorenzo Gavassino

The Dirac oscillator in a homogenous magnetic field exhibits a chirality phase transition at a particular (critical) value of the magnetic field. Recently, this system has also been shown to be exactly solvable in the context of…

统计力学 · 物理学 2020-04-21 Antonia M. Frassino , Dimitri Marinelli , Orlando Panella , Pinaki Roy

We investigate the performance of a micro gap vacuum thermionic energy converter considering the loss mechanisms due to the space charge effect and interelectrode radiative heat transfer. The dependencies of the space charge effect and…

应用物理 · 物理学 2020-09-02 Ehsanur Rahman , Alireza Nojeh

We show in this article that phase change materials (PCM) exhibiting a phase transition between a dielectric state and a metallic state are good candidates to perform modulation as well as amplification of radiative thermal flux. We propose…

材料科学 · 物理学 2015-06-24 Karl Joulain , Younès Ezzahri , Jérémie Drevillon , Philippe Ben-Abdallah

The uniform electron gas at finite temperature is of high current interest for warm dense matter research. The complicated interplay of quantum degeneracy and Coulomb coupling effects is fully contained in the pair distribution function or,…

等离子体物理 · 物理学 2018-02-09 Tobias Dornheim , Simon Groth , Michael Bonitz

In this paper the existence of the thermal tachyons i.e. quanta of temperature field, with is described in the theoretical frame of hyperbolic thermal equation. The modified Lorentz transformation are developed. It is argued that thermal…

综合物理 · 物理学 2007-05-23 Miroslaw Kozlowski , Janina Marciak-Kozlowska

The influence of photon-momentum recoil on adiabatic population transfer in an atomic three-level lambda system is studied. It is shown that the Doppler frequency shifts, due to atomic motion can play an important role in adiabatic…

量子物理 · 物理学 2016-11-03 R. G. Unanyan

We compute the energy spectrum of the ground state of a 2D Dirac electron in the presence of a Coulomb potential and a constant magnetic field perpendicular to the plane where the the electron is confined. With the help of a mixed-basis…

介观与纳米尺度物理 · 物理学 2009-11-10 Victor M. Villalba , Ramiro Pino

We use nonrelativistic supersymmetry, mainly Darboux transformations of the general (one-parameter) type, for the quantum oscillator thermodynamic actions. Interesting Darboux generalizations of the fundamental Planck and pure vacuum cases…

量子物理 · 物理学 2009-11-07 H. C. Rosu , F. Aceves de la Cruz

We investigate the quantum transport of the heat and the charge through a quantum dot coupled to fermionic contacts under the influence of time modulation of temperatures. We derive, within the nonequilibrium Keldysh Green's function…

介观与纳米尺度物理 · 物理学 2024-04-10 Rosa López , Pascal Simon , Minchul Lee

Starting from the beginning of their research in the early 2000's, the ultracold plasmas were considered as a promising tool to achieve considerable values of the Coulomb coupling parameter for electrons. Unfortunately, this was found to be…

等离子体物理 · 物理学 2023-12-29 Yurii V. Dumin , Anastasiia T. Lukashenko

A thermal diode transports heat mainly in one preferential direction rather than in the opposite direction. This behavior is generally due to the non-linear dependence of certain physical properties with respect to the temperature. Here we…

光学 · 物理学 2015-06-16 Philippe Ben-Abdallah , Svend-Age Biehs

The stochastic model that describes radiative heat transfer in dielectric medium is built. The model is based on the representation that heat transfer is realized both by heat conductivity mechanism in it and due to the electromagnetic…

统计力学 · 物理学 2017-03-20 Yuri Petrovich Virchenko , Lam Tan Phat
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