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相关论文: Dipoles in blackbody radiation: Momentum fluctuati…

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The thermal friction force acting on an atom moving relative to a thermal photon bath has recently been calculated on the basis of the fluctuation-dissipation theorem. The thermal fluctuations of the electromagnetic field give rise to a…

原子物理 · 物理学 2018-02-14 G. Lach , M. DeKieviet , U. D. Jentschura

The classical electromagnetic self-force on an arbitrary time-dependent electric or magnetic dipole moving with constant velocity in vacuum, and in a medium, is considered. Of course, in vacuum there is no net force on such a particle.…

高能物理 - 理论 · 物理学 2021-01-04 Kimball A. Milton , Hannah Day , Yang Li , Xin Guo , Gerard Kennedy

In this paper, we will provide a complete derivation of the decoherence rate for a magnetic nanoparticle in quantum superposition in the presence of the fluctuating electromagnetic field in a thermal background by using the…

量子物理 · 物理学 2026-03-12 Agya Sewara Alam , Anupam Mazumdar

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 study potentially observable consequences of spatiotemporal discreteness for the motion of massive and massless particles. First we describe some simple intrinsic models for the motion of a massive point particle in a fixed causal set…

广义相对论与量子宇宙学 · 物理学 2009-11-25 Fay Dowker , Lydia Philpott , Rafael Sorkin

By concern of compression of charge density field, the corrected Lorentz force formula and consequent inference is presented. And further radiation frequency property of an individual charge density field in magnetic dipole is analyzed…

加速器物理 · 物理学 2007-05-23 Ji Luo , Chuang Zhang , Bo Liu

The electromagnetic force on a polarizable particle is calculated in a covariant framework. Local equilibrium temperatures for the electromagnetic field and the particle's dipole moment are assumed, using a relativistic formulation of the…

量子物理 · 物理学 2014-07-23 Gregor Pieplow , Carsten Henkel

When particles are magnetized, a diffusion process is influenced by the ambient magnetic field. While the entropy increases, the constancy of the magnetic moment puts a constraint. Here, we compare the E-cross-B diffusion caused by random…

等离子体物理 · 物理学 2018-01-25 Naoki Sato , Zensho Yoshida

We discuss basic expressions and interrelations between various physical quantities describing the fluctuation-electromagnetic interaction of a small polarizable particle during relativistic motion relative to the blackbody radiation,…

量子物理 · 物理学 2015-12-21 G. V. Dedkov , A. A. Kyasov

We derive an exact expression for the radiation pressure of a quasi- monochromatic plane wave incident from the free space onto the flat surface of a semi-infinite dielectric medium. In order to account for the total optical momentum…

光学 · 物理学 2014-01-29 Masud Mansuripur

We obtain an approximate solution for the motion of a charged particle around a Schwarzschild black hole immersed in a weak dipolar magnetic field. We focus on eccentric bound orbits in the equatorial plane of the Schwarzschild black hole…

广义相对论与量子宇宙学 · 物理学 2015-06-24 Demetrios B. Papadopoulos , Ioannis Contopoulos , Kostas D. Kokkotas , Nikolaos Stergioulas

The dipole cutoff behavior for the proton form factor has been and still is one of the major issues in high-energy physics. It is shown that this dipole behavior comes from the coherence between the Lorentz contraction of the proton size…

高能物理 - 唯象学 · 物理学 2015-03-03 Young S. Kim

We derive some of the properties of blackbody radiation using thermodynamic identities. A few of the results reported earlier (in Part 1 of the present paper) will be re-derived here from a different perspective. We argue that the…

光学 · 物理学 2018-03-02 Masud Mansuripur

The motion of a test particle in the gravitational field of a non-spherical source endowed with both mass and mass quadrupole moment is investigated when a test radiation field is also present. The background is described by the Erez-Rosen…

高能天体物理现象 · 物理学 2015-06-23 Donato Bini , Andrea Geralico , Andrea Passamonti

The motion of matter immersed in a radiation field is affected by radiation drag, as a result of scattering or absorption and re-emission. The resulting friction-like drag, also known as Poynting-Robertson effect, has been recently studied…

广义相对论与量子宇宙学 · 物理学 2015-06-22 Donato Bini , Maurizio Falanga , Andrea Geralico , Luigi Stella

Momentum diffusion of the energetic charged particles is an important mechanism of the transport process in astrophysics, physics of the fusion devices, and laboratory plasmas. In addition to the uniform field momentum diffusion, we obtain…

等离子体物理 · 物理学 2022-04-20 J. F. Wang , G. Qin

An isotropic electromagnetic field in a plasma of thermalized electrons undergoes changes in energy as a result of Compton scattering and an Einstein-Hopf drag force on the electrons, eventually approaching a Bose-Einstein photon…

高能物理 - 唯象学 · 物理学 2021-10-04 Peter W. Milonni

According to the scientific literature, the momentum of a photon in a simple linear dielectric is either $\hbar\omega/(nc)$ or $n\hbar\omega/c$ with a unit vector ${\bf \hat e}_k$ in the direction of propagation. These momentums are…

光学 · 物理学 2015-11-18 Michael E. Crenshaw

We study charge and energy diffusion in simple holographic theories with broken translational symmetry. We find that when the effects of momentum relaxation are very strong the diffusion constants take universal values $D_{c} \sim D_{e}…

高能物理 - 理论 · 物理学 2016-11-09 Mike Blake

The investigation of the diffusive transport of charged particles in a turbulent magnetic field remains a subject of considerable interest. Research has most frequently concentrated on determining the diffusion coefficient in the presence…

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