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arXiv 1809.04896hep-th
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扭折碰撞及其相关问题的研究进展

Some Recent Developments on Kink Collisions and Related Topics

Tomasz Romanczukiewicz, Yakov Shnir

摘要:

本文综述了1+1维$ϕ^4$理论及其它相关模型(如sine-Gordon模型或$ϕ^6$理论)对扭结动力学的模拟研究。我们讨论了小扰动的谱结构如何影响非微扰态的动力学,如扭结或微扰子。我们描述了不同的机制,这可能会导致在扭结-反扭结碰撞的共振结构的发生。我们解释了辐射压机制的起源,特别是在$ϕ^4$和$ϕ^6$模型中出现的负辐射压。我们还表明,由辐射引起的扭结-反扭结对的生产过程是混沌的。

英文摘要:

We review recent works on modeling of dynamics of kinks in 1+1 dimensional $ϕ^4$ theory and other related models, like sine-Gordon model or $ϕ^6$ theory. We discuss how the spectral structure of small perturbations can affect the dynamics of non-perturbative states, such as kinks or oscillons. We describe different mechanisms, which may lead to the occurrence of the resonant structure in the kink-antikink collisions. We explain the origin of the radiation pressure mechanism, in particular, the appearance of the negative radiation pressure in the $ϕ^4$ and $ϕ^6$ models. We also show that the process of production of the kink-antikink pairs, induced by radiation is chaotic.

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。

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