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Closed nonrelativistic (nonretarded) theory of conservative and dissipative electromagnetic forces and heat exchange between moving particles (nanoprobes) and a surface (flat and cylindrical) is reviewed. The formalism is based on methods…

介观与纳米尺度物理 · 物理学 2011-03-29 G. V. Dedkov , A. A. Kyasov

The kinetic Boltzmann equation is used to model the non-equilibrium ionization phase that initiates the evolution of atomic clusters irradiated with single pulses of intense vacuum ultraviolet radiation. The duration of the pulses is < 50…

等离子体物理 · 物理学 2009-11-13 B. Ziaja , H. Wabnitz , E. Weckert , T. Moeller

The change of the vibrational energy within a molecule after collisions with another molecule plays an essential role in the evolution of molecular internal energy distributions, which is also the limiting process in the relaxation of the…

化学物理 · 物理学 2024-09-16 Xiaorui Zhao , Xuefei Xu , Haitao Xu

Models of the continuum radiation from accreting hot plasmas typically assume that the plasma heating mechanism produces energetic particles distributed in energy either as a Maxwellian (the ``thermal'' models) or as an extended power law…

天体物理学 · 物理学 2007-05-23 Paolo S. Coppi

Relaxation dynamics of embedded metal nanoparticles after ultrafast laser pulse excitation is driven by thermal phenomena of different origins the accurate description of which is crucial for interpreting experimental results: hot electron…

材料科学 · 物理学 2009-11-13 Majid Rashidi-Huyeh , Sebastian Volz , Bruno Palpant

Molecular dynamics simulations are used to model the thermal properties of a fluid containing solid nanoparticles (nanofluid). The flexibility of molecular simulation allows us to consider the effects of particle mass, particle-particle and…

材料科学 · 物理学 2009-09-29 Mihail Vladkov , J. -L. Barrat

The plasma heating during collisionless magnetic reconnection is investigated using particle-in-cell simulations. We analyze the time evolution of the plasma temperature associated with the motion of the reconnecting flux tube, where the…

高能天体物理现象 · 物理学 2018-11-28 Masahiro Hoshino

Effect of small additive molecules on the structural relaxation of polymer melts is investigated via molecular dynamics simulations. At a constant external pressure and a fixed number concentration of added molecules, the variation of…

软凝聚态物质 · 物理学 2019-07-30 Elias M. Zirdehi , Fathollah Varnik

We review recent developments in nonlinear quantum transport through nanostructures and mesoscopic systems driven by thermal gradients or in combination with voltage biases. Low-dimensional conductors are excellent platforms to analyze both…

介观与纳米尺度物理 · 物理学 2016-11-14 David Sanchez , Rosa Lopez

We study the quantum geometric heat flux in the nonequilibrium spin-boson model. By adopting the noninteracting-blip approximation that is able to accommodate the strong system-bath coupling, we show that there exists a nonzero geometric…

介观与纳米尺度物理 · 物理学 2013-04-25 Tian Chen , Xiang-Bin Wang , Jie Ren

The understanding of heat transport in nonequilibrium thermodynamics is an important research frontier, which is crucial for implementing novel thermodynamic devices, such as heat engines and refrigerators. The convection, conduction, and…

光学 · 物理学 2020-10-28 Cheng Yang , Xinrui Wei , Jiteng Sheng , Haibin Wu

In small-scale, low-density or high-speed flows, the mean free path of the gas and its molecular interaction with a solid interface are key properties for the analysis of heat transfer mechanisms occurring in many flow processes ranging…

流体动力学 · 物理学 2025-06-18 Diogo C. Barros , Lionel Larchevêque , Pierre Dupont

This paper presents the results of calculating Casimir-Lifshitz friction force and heating rate of a small metal particle moving above a metal surface (thick plate) in the case of their different local temperatures. The case of normal…

介观与纳米尺度物理 · 物理学 2022-12-21 G. V. Dedkov

Previous studies have predicted the failure of Fourier's law of thermal conduction due to the existence of wave like propagation of heat with finite propagation speed. This non-Fourier thermal transport phenomenon can appear in both the…

介观与纳米尺度物理 · 物理学 2021-08-05 Chuang Zhang , Zhaoli Guo

A polyatomic ideal gas with weak interaction between the translational and internal modes is considered. For the purpose of describing the behavior of such a gas, a Boltzmann equation is proposed in the form that the collision integral is a…

偏微分方程分析 · 数学 2026-03-31 Kazuo Aoki , Niclas Bernhoff

In the dynamics of atoms and molecules at metal surfaces, electron-hole pair excitations can play a crucial role. In the case of hyperthermal hydrogen atom scattering, they lead to nonadiabatic energy loss and highly inelastic scattering.…

材料科学 · 物理学 2024-12-02 Connor L. Box , Nils Hertl , Wojciech G. Stark , Reinhard J. Maurer

The non-equilibrium contributions to the post-Newtonian hydrodynamic equations are determined from a relaxation-time model of the post-Newtonian Boltzmann equation. The Chapman-Enskog method is used to calculate the non-equilibrium…

广义相对论与量子宇宙学 · 物理学 2023-04-05 Gilberto M. Kremer

Heat transfer properties in non-reciprocal systems are discussed. An ideal experiment employing microwave or optical isolators is considered in order to investigate the possibility for a spontaneous transfer of energy between two black…

统计力学 · 物理学 2007-05-23 Alejandro Cabo

A flux rope eruption on September 10, 2017 provides unique observations of the plasma sheet beneath the rising flux rope. The plasma sheet is likely in a nonequilibrium state in terms of both ionization and the electron distribution…

太阳与恒星天体物理 · 物理学 2026-04-03 Jin-Yi Lee , John C. Raymond , Katharine K. Reeves , Chengcai Shen , Stephen Kahler , Yong-Jae Moon , Yeon-Han Kim

We developed a model for the enhancement of the heat flux by spherical and elongated nano- particles in sheared laminar flows of nano-fluids. Besides the heat flux carried by the nanoparticles the model accounts for the contribution of…