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arXiv 1709.04360nlin.CD
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Henon-Heiles哈密顿系统的逃逸动力学研究综述

An overview of the escape dynamics in the Henon-Heiles Hamiltonian system

Euaggelos E. Zotos

摘要:

这项工作的目的是修订,但也进一步探讨逃逸动力学的Hénon-Heiles系统。特别是,我们进行了彻底和系统的数值研究区分捕获(有序和混乱)和逃逸轨道,只考虑无界运动的几个能级。特别令人感兴趣的是,将逃逸盆地定位到不同的逃逸通道,并将它们与轨道的相应逃逸周期联系起来。为了阐明逃逸过程,我们进行了彻底的调查,在几种类型的二维平面,也在整个四维相空间的三维子空间。我们分类广泛的样本的轨道通过数值积分的运动方程以及变分方程。在试图确定被困运动的规则或混沌性质,我们应用SALI方法,作为一个准确的混沌检测器。结果发现,在所有研究的情况下,非逃逸轨道区域与几个逃逸盆地共存。目前的大多数成果已与以前的相关工作进行了比较。

英文摘要:

The aim of this work is to revise but also explore even further the escape dynamics in the Hénon-Heiles system. In particular, we conduct a thorough and systematic numerical investigation distinguishing between trapped (ordered and chaotic) and escaping orbits, considering only unbounded motion for several energy levels. It is of particular interest, to locate the basins of escape towards the different escape channels and relate them with the corresponding escape periods of the orbits. In order to elucidate the escape process we conduct a thorough investigation in several types of two-dimensional planes and also in a three-dimensional subspace of the entire four-dimensional phase space. We classify extensive samples of orbits by integrating numerically the equations of motion as well as the variational equations. In an attempt to determine the regular or chaotic nature of trapped motion, we apply the SALI method, as an accurate chaos detector. It was found, that in all studied cases regions of non-escaping orbits coexist with several basins of escape. Most of the current outcomes have been compared with previous related work.

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