arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2008.01276math.APmath-phmath.MP
收藏

一般(1+1)-标量场模型扭结渐近稳定性的一个充分条件

A sufficient condition for asymptotic stability of kinks in general (1+1)-scalar field models

Michał Kowalczyk, Yvan Martel, Claudio Muñoz, Hanne Van Den Bosch

摘要:

本文研究了(1+1)维非线性标量场理论模型\begin{equation*} \partial_t^2ϕ-\partial_x^2ϕ+ W'(ϕ) = 0, \quad (t,x)\in\mathbb{R}\times\mathbb{R}. \end{equation*}中扭结的稳定性。在一般的势$W$假设下,扭结的轨道稳定性是能量参数的结果。我们的主要结果是一个简单而明确的充分条件的潜在$W$的渐近稳定性的一个给定的扭结的推导。这个条件适用于任何静态或运动扭结,特别是不需要对称性假设。最后,在物理学文献的启发下,我们给出了该判据在$P(ϕ)_2$理论和双sine-Gordon理论中的应用。

英文摘要:

We study stability properties of kinks for the (1+1)-dimensional nonlinear scalar field theory models \begin{equation*} \partial_t^2ϕ-\partial_x^2ϕ+ W'(ϕ) = 0, \quad (t,x)\in\mathbb{R}\times\mathbb{R}. \end{equation*} The orbital stability of kinks under general assumptions on the potential $W$ is a consequence of energy arguments. Our main result is the derivation of a simple and explicit sufficient condition on the potential $W$ for the asymptotic stability of a given kink. This condition applies to any static or moving kink, in particular no symmetry assumption is required. Last, motivated by the Physics literature, we present applications of the criterion to the $P(ϕ)_2$ theories and the double sine-Gordon theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑