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Minkowski spacetime is a convenient setting for the study of the relativistic dynamics of particles and fields in the vacuum. In order to study events that occur in a dielectric or other linear medium, we adopt the familiar continuum…

经典物理 · 物理学 2009-02-27 Michael E. Crenshaw

A class of exact conformastatic solutions of the Einstein-Maxwell field equations is presented in which the gravitational and electromagnetic potentials are completely determined by a harmonic function only. The motion of test particles is…

广义相对论与量子宇宙学 · 物理学 2015-10-20 Antonio C. Gutiérrez-Piñeres , Abraão J. S. Capistrano

This paper explores the dynamics of both neutral as well as charged particles orbiting near a rotating black hole in scalar-tensor-vector gravity. We study the conditions for the particle to escape at the innermost stable circular orbit. We…

广义相对论与量子宇宙学 · 物理学 2017-09-13 M. Sharif , Misbah Shahzadi

We present an analysis of the behaviour of the electromagnetic self-force for charged particles in a conformally static spacetime, interpreting the results with the help of optical geometry. Some conditions for the vanishing of the local…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Sebastiano Sonego , Marek A. Abramowicz

We study different types of spacetime singularities which emerge in the context of disformal electrodynamics. The latter is characterized by transformations of the background metric which preserve regular (non-null) solutions of Maxwell…

广义相对论与量子宇宙学 · 物理学 2026-02-25 Eduardo Bittencourt , Ricardo Fernandes , Érico Goulart , José Eloy Ottoni

Compactification of the 5-dimensional Kaluza-Klein space-time geometry is considered. The space-time geometry is supposed to be discrete, uniform and isotropic. It is shown, that consideration of the space-time geometry as a physical…

综合物理 · 物理学 2011-05-13 Yuri A. Rylov

The connection dynamics of the 5-dimensional Kaluza-Klein theory reduced on 4-dimensional spacetime is obtained by performing the Hamiltonian analysis and canonical transformations. Deparametrization is achieved in the spherically symmetric…

广义相对论与量子宇宙学 · 物理学 2023-02-15 Haida Li , Shengzhi Li , Yongge Ma

We discuss the motion of electrically and magnetically charged particles in the electromagnetic swirling universe. We show that the equations of motion can be decoupled in the Hamilton-Jacobi formalism, revealing the existence of a fourth…

广义相对论与量子宇宙学 · 物理学 2024-07-08 Rogério Capobianco , Betti Hartmann , Jutta Kunz

In this paper we propose a new approach to matter dynamics in compactified Kaluza-Klein theories. We discard the idea that the motion is geodesic and perform a simultaneous reduction of matter geometry defining the test particle via a…

广义相对论与量子宇宙学 · 物理学 2009-06-15 Valentino Lacquaniti , Giovanni Montani

We consider the quantum dynamics of a charged particle in Euclidean space subjected to electric and magnetic fields under the presence of a potential that forces the particle to stay close to a compact surface. We prove that, as the…

数学物理 · 物理学 2018-10-30 Gustavo de Oliveira

In this work, we investigate the relativistic quantum dynamics of spin-0 massive charged particles in a 4D curved space-time, the generalization of a cosmic string space-time. We investigate the Klein-Gordon equation in the presence of…

高能物理 - 理论 · 物理学 2020-01-28 Faizuddin Ahmed

Unimodular gravity became an object of increasing interest in the late $80$-ties and was recently used in primordial Universe modeling with cosmological constant, in the context of the Brans-Dicke gravity including scalar field. In the…

广义相对论与量子宇宙学 · 物理学 2024-11-19 Júlio C. Fabris , Richard Kerner

We investigate the dynamics of a neutral and a charged particle around a static and spherically symmetric black hole in the presence of quintessence matter and external magnetic field. We explore the conditions under which the particle…

广义相对论与量子宇宙学 · 物理学 2015-01-26 Mubasher Jamil , Saqib Hussain , Bushra Majeed

In this article we analyze the geodesics of test particles and light in the five dimensional (charged) doubly spinning black ring spacetime. Apparently it is not possible to separate the Hamilton-Jacobi-equation for (charged) doubly…

广义相对论与量子宇宙学 · 物理学 2013-03-27 Saskia Grunau , Valeria Kagramanova , Jutta Kunz

We consider interactions of scalar particles, photons, and fermions in Schwarzschild, Reissner-Nordstr\"om, Kerr, and Kerr-Newman gravitational and electromagnetic fields with a zero and nonzero cosmological constant. We also consider…

综合物理 · 物理学 2020-12-09 M. V. Gorbatenko , V. P. Neznamov

Dynamics of a centrifugally driven particle moving along a magnetically prescribed trajectory (e.g. pulsar magnetic field line) in a spacetime of a rotating massive body is considered. We do assume that the particle is on a zero Landau…

高能天体物理现象 · 物理学 2020-05-06 Giorgi Khomeriki , Andria Rogava

Diffusion of electrons in a two-dimensional system in static random magnetic fields is studied by solving the time-dependent Schr\"{o}dinger equation numerically. The asymptotic behaviors of the second moment of the wave packets and the…

凝聚态物理 · 物理学 2009-10-28 Tohru Kawarabayashi , Tomi Ohtsuki

By describing the dynamical evolution of a test charged particle in the presence of an electromagnetic field as a succession of infinitesimal Lorentz boosts and rotations it is possible to obtain the Lorentz Force of Electrodynamics. A…

数学物理 · 物理学 2009-01-21 J. Buitrago

Considering electrically charged test particles, we continue our study of the exterior dynamics of a charged Weyl black hole which has been previously investigated regarding the motion of mass-less and (neutral) massive particles. In this…

广义相对论与量子宇宙学 · 物理学 2021-04-27 Mohsen Fathi , Marco Olivares , J. R. Villanueva

A 5-dimensional Einstein spacetime with (non)vanishing cosmological constant is analyzed in detail. The metric is in close analogy with the 4-dimensional massless uncharged C-metric in many aspects. The coordinate system, horizons and…

广义相对论与量子宇宙学 · 物理学 2014-11-21 Wei Xu , Liu Zhao , Bin Zhu