中文
相关论文

相关论文: Dynamical system describing cloud of particles in …

200 篇论文

In this paper, we have outlined the development of an autonomous dynamical system within a general scalar-tensor gravity framework. This framework encompasses the overall structure of the non-minimally coupled scalar field functions for…

广义相对论与量子宇宙学 · 物理学 2024-10-14 S. A. Kadam , L. K. Duchaniya , B. Mishra

We perform a dynamical system analysis of a cosmological model with linear dependence between the vacuum density and the Hubble parameter, with constant-rate creation of dark matter. We show that the de Sitter spacetime is an asymptotically…

广义相对论与量子宇宙学 · 物理学 2018-09-25 S. Carneiro , H. A. Borges

Internal dynamical evolution can drive stellar systems into states of high central density. For many star clusters and galactic nuclei, the time scale on which this occurs is significantly less than the age of the universe. As a result,…

天体物理学 · 物理学 2009-06-23 Stephen L. W. McMillan

We propose a composite Lyapunov framework for nonlinear autonomous systems that ensures strict decay through a pair of differential inequalities. The approach yields integral estimates, quantitative convergence rates, vanishing of…

最优化与控制 · 数学 2025-10-10 Hassan Saoud

A simple model for the nonlinear collective transport of interacting particles in a random medium with strong disorder is introduced and analyzed. A finite threshold for the driving force divides the behavior into two regimes characterized…

凝聚态物理 · 物理学 2009-10-28 Joe Watson , Daniel S. Fisher

In the paper we investigate the behavior of trajectory of rational $p$-adic dynamical system in complex $p$-adic filed $\C_p$. It is studied Siegel disks and attractors of such dynamical systems. We show that Siegel disks may either…

动力系统 · 数学 2007-05-23 Farrukh Mukhamedov , Utkir Rozikov

The cosmological dynamics are rigorously investigated through the systematic application of autonomous system analysis to the gravitational field equations in non-metricity gravity. The systematic procedure to analyze the late-time cosmic…

广义相对论与量子宇宙学 · 物理学 2025-03-13 Pooja Vishwakarma , Parth Shah , Kazuharu Bamba

We prove the existence of a solution to an equation governing the number density within a compact domain of a discrete particle system for a prescribed class of particle interactions taking into account the effects of the diffusion and…

概率论 · 数学 2007-05-23 Clive G. Wells

The stochastic theory of relativistic quantum mechanics presented here is modelled on the one that has been proposed previously and that was claimed to be a promising substitute to the orthodox theory in the non-relativistic domain. So it…

量子物理 · 物理学 2020-06-09 Maurice Godart

In this work we study a kinetic model of active particles with delayed dynamics, and its limit when the number of particles goes to infinity. This limit turns out to be related to delayed differential equations with random initial…

偏微分方程分析 · 数学 2020-06-17 Juan Pablo Pinasco , Mauro Rodriguez Cartabia , Nicolas Saintier

We derive sufficient conditions for a dynamical systems to have a set of irregular points with full topological entropy. Such conditions are verified for some nonuniformly hyperbolic systems such as positive entropy surface diffeomorphisms…

动力系统 · 数学 2022-08-24 Katrin Gelfert , Maria Jose Pacifico , Diego Sanhueza

We consider a simple model of lossless interaction between a two-level single atom and a standing-wave single-mode laser field which creates a one-dimensional optical lattice. Internal dynamics of the atom is governed by the laser field…

量子物理 · 物理学 2011-11-09 V. Yu. Argonov , S. V. Prants

Consider briefly the equations of fluid dynamics-they describe the enormous wealth of detail in all the interacting physical elements of a fluid flow-whereas in applications we want to deal with a description of just that which is…

chao-dyn · 物理学 2016-08-31 A. J. Roberts

Inspired by one--dimensional light--particle systems, the dynamics of a non-Hamiltonian system with long--range forces is investigated. While the molecular dynamics does not reach an equilibrium state, it may be approximated in the…

统计力学 · 物理学 2019-01-23 Romain Bachelard , Nicola Piovella , Shamik Gupta

We conduct a numerical study of the dynamical behavior of a system of three-dimensional crosses, particles that consist of three mutually perpendicular line segments rigidly joined at their midpoints. In an earlier study [W. van Ketel et…

无序系统与神经网络 · 物理学 2009-11-13 Patrick Charbonneau , Chinmay Das , Daan Frenkel

I argue that the widely adopted framework of stellar dynamics survived since 1940s, is not fitting the current knowledge on non-linear systems. Borrowed from plasma physics when several fundamental features of perturbed non-linear systems…

天体物理学 · 物理学 2008-11-26 V. G. Gurzadyan

On the basis of information theory, a new formalism of classical non-relativistic mechanics of a mass point is proposed. The particle trajectories of a general dynamical system defined on an (1+n)-dimensional smooth manifold are treated…

量子物理 · 物理学 2014-07-30 Yoshimasa Kurihara , Khiem Hong Phan , Nhi My Uyen Quach

We consider the consequences of applying general relativity to the description of the dynamics of a galaxy, given the observed flattened rotation curves. The galaxy is modeled as a stationary axially symmetric pressure-free fluid. In spite…

天体物理学 · 物理学 2010-10-27 F. I. Cooperstock , S. Tieu

Dynamics of the structured particles consisting of potentially interacting material points is considered in the framework of classical mechanics. Equations of interaction and motion of structured particles have been derived. The expression…

综合物理 · 物理学 2012-05-14 V. M. Somsikov

Recently, a self-contained trajectory-based formulation of non-relativistic quantum mechanics was developed [Ann. Phys. 315, 505 (2005); Chem. Phys. 370, 4 (2010); J. Chem. Phys. 136, 031102 (2012)], that makes no use of wavefunctions or…

量子物理 · 物理学 2012-08-31 Bill Poirier