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arXiv 2203.09489nlin.PS
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孤立波台球

Solitary wave billiards

J. Cuevas-Maraver, P. G. Kevrekidis, H. Zhang

AI总结:

本文提出孤立波台球概念,探究孤立波在封闭区域内的边界碰撞与轨迹,发现即使在经典粒子台球可积时孤立波台球通常也呈混沌状态,其混沌程度取决于粒子速度和势的性质,并基于负 Goos-Hänchen 效应阐明了散射本质及台球区域有效收缩。

摘要:

在本文中,我们探讨了孤立波台球的概念。即,我们研究的是封闭区域内的孤立波而非点粒子,并探究其与边界的碰撞及由此产生的轨迹,涵盖了粒子台球中已知可积的情形以及已知混沌的情形。一个主要结论是,孤立波台球通常表现为混沌状态,即使在经典粒子台球可积的情况下也是如此。然而,所产生的混沌程度取决于粒子速度和势的性质。此外,基于负 Goos-Hänchen 效应阐明了可变形孤立波粒子散射的本质,该效应除了导致轨迹偏移外,还会引起台球区域的有效收缩。

英文摘要:

In the present work we explore the concept of solitary wave billiards. I.e., instead of a point particle, we examine a solitary wave in an enclosed region and explore its collision with the boundaries and the resulting trajectories in cases which for particle billiards are known to be integrable and for cases that are known to be chaotic. A principal conclusion is that solitary wave billiards are generically found to be chaotic even in cases where the classical particle billiards are integrable. However, the degree of resulting chaoticity depends on the particle speed and on the properties of the potential. Furthermore, the nature of the scattering of the deformable solitary wave particle is elucidated on the basis of a negative Goos-Hänchen effect which, in addition to a trajectory shift, also results in an effective shrinkage of the billiard domain.

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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