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The rarely used Hamilton-Jacobi equation has been utilized as an elegant way to find the trajectories of mechanical systems and to derive symplectic maps. Further, the exact solution in kick approximation of Hamilton's equations of motion…

加速器物理 · 物理学 2026-01-21 Stephan I. Tzenov

We consider a nonrelativistic quantum charged particle moving on a plane under the influence of a uniform magnetic field and driven by a periodically time-dependent Aharonov-Bohm flux. We observe an acceleration effect in the case when the…

数学物理 · 物理学 2011-07-15 T. Kalvoda , P. Stovicek

The relaxation dynamics of correlated electron transport (ET) along molecular chains is studied based on a substantially improved numerically exact path integral Monte Carlo (PIMC) approach. As archetypical model we consider a Hubbard chain…

统计力学 · 物理学 2009-11-11 L. Muehlbacher , J. Ankerhold , A. Komnik

Nonlinear dynamics can impact the performance of a particle accelerator in a number of different ways, depending on the type of the accelerator and the parameter regime in which it operates. Effects can range from minor changes in beam…

加速器物理 · 物理学 2022-01-06 H. Bartosik , Y. Papaphilippou , A. Wolski

We extend the canonical formalism for the motion of $N$-particles in lineal gravity to include charges. Under suitable coordinate conditions and boundary conditions the determining equation of the Hamiltonian (a kind of transcendental…

广义相对论与量子宇宙学 · 物理学 2008-11-26 R. B. Mann , D. Robbins , T. Ohta , M. R. Trott

An extended interference pattern close to surface may result in both a transmissive or evanescent surface fields for large area manipulation of trapped particles. The affinity of differing particle sizes to a moving standing wave light…

We consider the motion of uncharged dust grains of arbitrary shape including the effects of electromagnetic radiation and thermal emission. The resulting relativistically covariant equation of motion is expressed in terms of standard…

天体物理学 · 物理学 2009-11-07 Jozef Klacka

In this paper it is shown that the equations of electric field lines of an arbitrarily moving charged particle in the general case are reduced to homogeneous, linear differential equations with variable coefficients. For trajectories where…

经典物理 · 物理学 2022-03-15 S. G. Arutunian , M. A. Aginian , A. V. Margaryan , E. G. Lazareva , M. Chung

The post-Newtonian approximation is a method for solving Einstein's field equations for physical systems in which motions are slow compared to the speed of light and where gravitational fields are weak. Yet it has proven to be remarkably…

广义相对论与量子宇宙学 · 物理学 2015-05-27 Clifford M. Will

We investigate the dynamics of two point-like particles through the third post-Newtonian (3PN) approximation of general relativity. The infinite self-field of each point-mass is regularized by means of Hadamard's concept of ``partie…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Luc Blanchet , Guillaume Faye

We develop a reduced model for the slow unsteady dynamics of an isotropic chemically active particle near the threshold for spontaneous motion. Building on the steady theory developed in part I of this series, we match a weakly nonlinear…

软凝聚态物质 · 物理学 2023-02-24 Gunnar G. Peng , Ory Schnitzer

We use a simple model of particle shape to investigate how particle asymmetry affects particle-surface interaction, orientation, and stochastic dynamics over a planar surface. With this geometric model, we construct potential energy curves…

软凝聚态物质 · 物理学 2017-10-10 Guilherme H. Oliveira , A. Honorato , Rene A. Nome

The equations of motion for the position and gauge invariant crystal momentum are considered for multiband wave packets of Bloch electrons. For a localized packet in a subset of bands well-separated from the rest of the band structure of…

介观与纳米尺度物理 · 物理学 2019-02-05 Troy Stedman , Carsten Timm , Lilia M. Woods

The motion of a system of particles under electromagnetic interaction is considered. Under the assumption that the force acting on an electric charge is given by the sum of the electromagnetic fields produced by any other charged particles…

综合物理 · 物理学 2007-05-23 O. Chavoya-Aceves

We present a novel general framework to deal with forward and backward components of the electromagnetic field in axially-invariant nonlinear optical systems, which include those having any type of linear or nonlinear transverse…

We consider the dynamics of systems of self propelling particles with nonholonomic constraints. A continuum model for a discrete algorithm used in works by T. Vicsek et al. is proposed. For a case of planar geometry the finite flocking…

经典物理 · 物理学 2007-05-23 V. L. Kulinskii , V. I. Ratushnaya , A. V. Zvelindovsky , D. Bedeaux

Confocal microscopy of fluorescent labeled particles has been used to study the dynamical and structural properties of colloidal and granular matter in real space. Localization algorithms allow for a fully automatized determination of the…

软凝聚态物质 · 物理学 2011-12-08 Marcel Roth , Michael Franzmann , Maria D'Acunzi , Max Kreiter , Günter K. Auernhammer

We consider the motion of a point particle with spin in a stationary spacetime. We define, following Witzany (2019) and later Ramond (2022), a twelve dimensional Hamiltonian dynamical system whose orbits coincide with the solutions of the…

广义相对论与量子宇宙学 · 物理学 2023-06-21 Francisco M. Blanco , Éanna É. Flanagan

We have developed a computational method to describe the nonlinear light propagation of an intense and ultrashort pulse at oblique incidence on a flat surface. In the method, coupled equations of macroscopic light propagation and…

光学 · 物理学 2022-06-29 Mitsuharu Uemoto , Kazuhiro Yabana

Non-linear effects in hadronic interactions are treated by means of enhanced pomeron diagrams, assuming that pomeron-pomeron coupling is dominated by soft partonic processes. It is shown that the approach allows to resolve a seeming…

高能物理 - 唯象学 · 物理学 2011-07-19 S. Ostapchenko