English

Chaos and L\'evy Flights in the Three-Body Problem

Earth and Planetary Astrophysics 2020-06-24 v2 Chaotic Dynamics

Abstract

We study chaos and L\'evy flights in the general gravitational three-body problem. We introduce new metrics to characterize the time evolution and final lifetime distributions, namely Scramble Density S\mathcal{S} and the LF index L\mathcal{L}, that are derived from the Agekyan-Anosova maps and homology radius RHR_{\mathcal{H}}. Based on these metrics, we develop detailed procedures to isolate the ergodic interactions and L\'evy flight interactions. This enables us to study the three-body lifetime distribution in more detail by decomposing it into the individual distributions from the different kinds of interactions. We observe that ergodic interactions follow an exponential decay distribution similar to that of radioactive decay. Meanwhile, L\'evy flight interactions follow a power-law distribution. L\'evy flights in fact dominate the tail of the general three-body lifetime distribution, providing conclusive evidence for the speculated connection between power-law tails and L\'evy flight interactions. We propose a new physically-motivated model for the lifetime distribution of three-body systems and discuss how it can be used to extract information about the underlying ergodic and L\'evy flight interactions. We discuss mass ejection probabilities in three-body systems in the ergodic limit and compare it to previous ergodic formalisms. We introduce a novel mechanism for a three-body relaxation process and discuss its relevance in general three-body systems.

Keywords

Cite

@article{arxiv.2004.05475,
  title  = {Chaos and L\'evy Flights in the Three-Body Problem},
  author = {Viraj Manwadkar and Alessandro A. Trani and Nathan W. C. Leigh},
  journal= {arXiv preprint arXiv:2004.05475},
  year   = {2020}
}

Comments

20 pages, 14 figures