Asymptotic predictions using short-time data in oscillating billiards

Details Asymptotic predictions using short-time data in oscillating billiards Asymptotic predictions using short-time data in oscillating billiards

2010-05-20

arxiv.org/abs/1005.3652v1

Physics

Plasma Physics

5 pages, 3 figures

Scientific paper

Particle motion in a smoothly oscillating non-integrable billiard is known to result in unbounded energy growth. Though the asymptotic energy growth rate of an ensemble of particles in an oscillating chaotic billiard is known to be quadratic, there are no estimates available for smoothly oscillating pseudo-integrable billiards. The energy growth rate in such systems is so slow that it is very hard to predict the asymptotic rates from finite time computations. In this paper, a method is proposed to estimate the asymptotic energy growth rate in a system by using short-time data. The idea is applied to the case of an oscillating pseudo-integrable system, and it is shown that the asymptotic energy growth rate in such systems could be exponential.

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