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相关论文: Generalized Kinetic Theory of Electrons and Phonon…

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A Generalized Kinetic Theory was proposed in order to have the possibility to treat particles which obey a very general statistics. By adopting the same approach, we generalize here the Kinetic Theory of electrons and phonons. Equilibrium…

数学物理 · 物理学 2015-06-26 A. Rossani

In the present paper we introduce generalized kinetic equations describing the dynamics of a system of interacting gas and photons obeying to a very general statistics. In the space homogeneous case we study the equilibrium state of the…

统计力学 · 物理学 2009-11-10 A. Rossani , A. M. Scarfone

We derive a general theorem relating the energy, momentum and velocity of any solitary wave solution of the generalized KdV equation which enables us to relate the amplitude, width, and momentum to the velocity of these solutions. We obtain…

斑图形成与孤子 · 物理学 2013-05-29 Fred Cooper , Avinash Khare , Avadh Saxena

We present a full ab-inito description of the coupled out-of-equilibrium dynamics of photons, phonons, and electrons. In the present approach the quantised nature of the electromagnetic field as well as of the nuclear oscillations is fully…

介观与纳米尺度物理 · 物理学 2015-12-24 Pedro Melo , Andrea Marini

Fluctuation theorems have a very special place in the study of non equilibrium dynamics of physical systems. The form in which it is used most extensively is the Gallavoti-Cohen Fluctuation Theorem which is in terms of the distribution of…

经典物理 · 物理学 2015-12-01 G. S. Agarwal , Sushanta Dattagupta

Starting from the {\em ab initio} many-body theory of electrons and phonons, we go through a series of well defined simplifications to derive a set of coupled equations of motion for the electronic occupations and polarizations, nuclear…

材料科学 · 物理学 2023-11-08 Gianluca Stefanucci , Enrico Perfetto

The backbone of nonequilibrium thermodynamics is the stability structure, where entropy is related to a Lyapunov function of thermodynamic equilibrium. Stability is the background of natural selection: unstable systems are temporary, and…

物理与社会 · 物理学 2024-10-01 Peter Ván

We study the kinetic mean-field limits of the discrete systems of interacting particles used for halftoning of images in the sense of continuous-domain quantization. Under mild assumptions on the regularity of the interacting kernels we…

偏微分方程分析 · 数学 2011-12-08 Massimo Fornasier , Jan Haskovec , Gabriele Steidl

This paper proposes to analyze the motion stability of synchro-nous generator power systems using a Lagrangian model derived in the configuration space of generalized position and speed. In the first place, a Lagrangian model of synchronous…

系统与控制 · 电气工程与系统科学 2024-12-23 Feng Ji , Lu Gao , Chang Lin , Yang Liu

We show that thermal equilibrium between conduction electrons and phonons becomes kinetically unstable when the renormalized electron-phonon coupling exceeds a certain threshold. We prove that negative electronic specific heat,…

强关联电子 · 物理学 2025-08-06 Emil A. Yuzbashyan , Boris L. Altshuler , Aniket Patra

Our direct atomic simulations reveal that a thermally activated phonon mode involves a large population of elastic wavepackets. These excitations are characterized by a wide distribution of lifetimes and coherence times expressing particle-…

介观与纳米尺度物理 · 物理学 2021-05-26 Zhongwei Zhang , Yangyu Guo , Marc Bescond , Jie Chen , Masahiro Nomura , Sebastian Volz

We derive the steady-state electron distribution function for a semiconductor driven far from equilibrium by the inter-band photoexcitation assumed homogeneous over the nanoscale sample. Our analytical treatment is based on the…

统计力学 · 物理学 2007-05-23 Navinder Singh , N. Kumar

We develop quantum electrodynamics into a kinetic-theory-like evolution equation for electrons, positrons and photons. To keep the "collision rules" simple, we make use of longitudinal and temporal photons in addition to the usual…

高能物理 - 理论 · 物理学 2018-03-09 Hans Christian Öttinger

We present a stability analysis of the standard nonautonomous systems type for a recently introduced generalized Lane-Emden equation which is shown to explain the presence of some of the structures observed in the atomic spatial…

数学物理 · 物理学 2018-09-11 Ronald Adams , Stefan C. Mancas , Haret C. Rosu

Invariance and stability are essential notions in dynamical systems study, and thus it is of great interest to learn a dynamics model with a stable invariant set. However, existing methods can only handle the stability of an equilibrium. In…

机器学习 · 计算机科学 2021-06-08 Naoya Takeishi , Yoshinobu Kawahara

The development of kinetic energy functional (KEF) is known as one of the most difficult subjects in the electronic density functional theory (DFT). In particular, the sound description of chemical bonds using a KEF is a matter of great…

化学物理 · 物理学 2025-03-03 Hideaki Takahashi

We propose an effective field theory describing the time dependent fluctuations of electrons in conducting systems, generalizing the well known kinetic theory of fluctuations. On several examples, we show its equivalence, (when quantum…

介观与纳米尺度物理 · 物理学 2009-03-22 D. B. Gutman , A. D. Mirlin , Yuval Gefen

New necessary and sufficient conditions are proposed for the stability investigation of dynamical systems using the flow and the divergence of the phase vector velocity. The obtained conditions generalize the well-known results of V.P.…

最优化与控制 · 数学 2019-05-17 Igor Furtat

A self-consistent quantum-kinetic model is developed for studying strong-field nonlinear electron transport interacting with force-driven phonons within a quantum-wire system. For this model, phonons can be dragged into motion through…

介观与纳米尺度物理 · 物理学 2024-01-17 Xuejun Lu , Danhong Huang

The existence of more than one steady-state in a many-body quantum system driven out-of-equilibrium has been a matter of debate, both in the context of simple impurity models and in the case of inelastic tunneling channels. In this Letter,…

强关联电子 · 物理学 2013-08-23 Eli. Y. Wilner , Haobin Wang , Guy Cohen , Michael Thoss , Eran Rabani
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