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Gravitational billiards -- bouncing inside a paraboloid cavity

Dynamical Systems 2023-01-31 v1 Mathematical Physics Metric Geometry math.MP Classical Physics

Abstract

In this work the confined domains for a point-like particle propagating within the boundary of an ideally reflecting paraboloid mirror are derived. Thereby it is proven that all consecutive flight parabola foci points lie on the surface of a common sphere of radius RR. The main results are illustrated in various limiting cases and are compared to its two-dimensional counterpart.

Keywords

Cite

@article{arxiv.2301.12186,
  title  = {Gravitational billiards -- bouncing inside a paraboloid cavity},
  author = {Daniel Jaud},
  journal= {arXiv preprint arXiv:2301.12186},
  year   = {2023}
}

Comments

12 pages, 7 figures

R2 v1 2026-06-28T08:24:39.450Z