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arXiv 2102.09992nlin.CDgr-qchep-th
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广义欧拉三体问题中的混沌

Chaos in a generalized Euler's three-body problem

Takahisa Igata

摘要:

欧拉三体问题是求解一个质点在由两个固定在空间的点源产生的牛顿势场中运动的问题。这个系统在Liouville意义下是可积的。我们考虑具有平方反比势的欧拉问题,它可以被看作是三维问题到高维牛顿理论的自然推广。我们确定了一个家庭的稳定的静止轨道的广义欧拉问题。这些轨道保证了稳定的有界轨道的存在。应用Poincaré映射方法对这些轨道进行分析,我们证明了稳定的有界混沌轨道的出现。结果表明,广义Euler问题是不可积的。

英文摘要:

Euler's three-body problem is the problem of solving for the motion of a particle moving in a Newtonian potential generated by two point sources fixed in space. This system is integrable in the Liouville sense. We consider the Euler problem with the inverse-square potential, which can be seen as a natural generalization of the three-body problem to higher-dimensional Newtonian theory. We identify a family of stable stationary orbits in the generalized Euler problem. These orbits guarantee the existence of stable bound orbits. Applying the Poincaré map method to these orbits, we show that stable bound chaotic orbits appear. As a result, we conclude that the generalized Euler problem is nonintegrable.

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