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Bounded Gain of Energy on the Breathing Circle Billiard

Sylvie Oliffson Kamphorst, Sonia Pinto de Carvalho

chao-dynarXiv:chao-dyn/9811023

Abstract

The Breathing Circle is a 2-dimensional generalization of the Fermi Accelerator. It is shown that the billiard map associated to this model has invariant curves in phase space, implying that any particle will have bounded gain of energy.

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