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相关论文: Stochastic Lorentz forces on a point charge moving…

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We treat a relativistically moving particle interacting with a quantum field from an open system viewpoint of quantum field theory by the method of influence functionals or closed-time-path coarse-grained effective actions. The particle…

量子物理 · 物理学 2007-05-23 Philip R. Johnson , B. L. Hu

We present a stochastic theory of charges moving in an electromagnetic field using nonequilibrium quantum field theory. We give a first principles' derivation of the Abraham-Lorentz-Dirac-Langevin equation which depicts the quantum…

量子物理 · 物理学 2007-05-23 Philip R. Johnson , B. L. Hu

The effects of electromagnetic vacuum fluctuations with the boundary on charged particles is investigated. They may be observed via an electron interference experiment near the conducting plate, where boundary effects of vacuum fluctuations…

高能物理 - 理论 · 物理学 2008-11-26 Tai-Hung Wu , Jen-Tsung Hsiang , Da-Shin Lee

A motion of a classical free charge in an electromagnetic plane wave can be found exactly in a fully relativistic case. We have found an approximate non-parameter form of the suitable equations of motion. In a linearly polarized wave, in…

原子物理 · 物理学 2015-05-13 J. H. Bauer

The Vlasov equation embodies the smooth field approximation of the self-consistent equation of motion for charged particle beams. This framework is fundamentally altered if we include the fluctuating forces that originate from the actual…

加速器物理 · 物理学 2023-04-26 Jürgen Struckmeier

Simulation and experimental studies have demonstrated non-equilibrium ordering in driven colloidal suspensions: with increasing driving force, a uniform colloidal mixture transforms into a locally demixed state characterized by the lane…

软凝聚态物质 · 物理学 2024-07-16 Hiroshi Frusawa

Recently it has been shown that when an equation that allows so-called pulled fronts in the mean-field limit is modelled with a stochastic model with a finite number $N$ of particles per correlation volume, the convergence to the speed…

统计力学 · 物理学 2009-11-07 Debabrata Panja

We consider a generalization of the classical nonrelativistic St\"{o}rmer problem, describing the motion of charged particles in a purely magnetic dipole field, by taking into account the effects of the dissipation, assumed to be of…

高能天体物理现象 · 物理学 2026-04-28 Tiberiu Harko , Gabriela Raluca Mocanu

We consider the dynamics of noninteracting electrons on a square lattice in the presence of a magnetic flux {\alpha} and a dc electric field E oriented along the lattice diagonal. In general, the adiabatic dynamics of an electron will be…

无序系统与神经网络 · 物理学 2016-06-14 Sergej Flach , Ramaz Khomeriki

Recently it has been shown that when an equation that allows so-called pulled fronts in the mean-field limit is modelled with a stochastic model with a finite number $N$ of particles per correlation volume, the convergence to the speed…

统计力学 · 物理学 2009-11-07 Debabrata Panja , Wim van Saarloos

We apply the open systems concept and the influence functional formalism introduced in Paper I to establish a stochastic theory of relativistic moving spinless particles in a quantum scalar field. The stochastic regime resting between the…

量子物理 · 物理学 2014-11-18 Philip R. Johnson , B. L. Hu

In turbulent magnetized plasmas, charged particles can be accelerated to high energies through their interactions with the turbulent motions. As they do so, they draw energy from the turbulence, possibly up to the point where they start…

高能天体物理现象 · 物理学 2024-03-11 M. Lemoine , K. Murase , F. Rieger

The effect of thermally generated bulk stochastic forces on the statistical growth dynamics of forwards bifurcating propagating macroscopic patterns is compared with the influence of fluctuations at the boundary of a semiinfinite system,…

patt-sol · 物理学 2009-10-30 M. Luecke , A. Szprynger

The fluctuation-dissipation theorem is a central theorem in nonequilibrium statistical mechanics by which the evolution of velocity fluctuations of the Brownian particle under a fluctuating environment is intimately related to its…

统计力学 · 物理学 2015-05-14 Jen-Tsung Hsiang , Tai-Hung Wu , Da-Shin Lee

A notion of stochastic deformation is introduced and the corresponding algebraic deformation procedure is developed. This procedure is analogous to the deformation of an algebra of observables like deformation quantization, but for an…

统计力学 · 物理学 2008-04-19 P. O. Kazinski

We present a stochastic theory for the nonequilibrium dynamics of charges moving in a quantum scalar field based on the worldline influence functional and the close-time-path (CTP or in-in) coarse-grained effective action method. We…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Philip R. Johnson , B. L. Hu

In this paper we study the non-relativistic dynamic of a charged particle in the electromagnetic field induced by a periodically time dependent current J along an infinitely long and infinitely thin straight wire. The motions are described…

数学物理 · 物理学 2022-07-27 Manuel Garzón , Stefano Marò

We analyze the effects of additive, spatially extended noise on spatiotemporal patterns in continuum neural fields. Our main focus is how fluctuations impact patterns when they are weakly coupled to an external stimulus or another…

神经元与认知 · 定量生物学 2015-01-08 Paul C. Bressloff , Zachary P. Kilpatrick

We present results for the fluctuations of the displacement of a tracer particle on a planar lattice pulled by a step force in the presence of impenetrable, immobile obstacles. The fluctuations perpendicular to the applied force are…

统计力学 · 物理学 2018-02-06 Sebastian Leitmann , Thomas Schwab , Thomas Franosch

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
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