Oscillating states of periodically driven anharmonic Langevin systems

Abstract

We investigate the asymptotic distributions of periodically driven anharmonic Langevin systems. Utilizing the underlying $S{L}_2$ symmetry of the Langevin dynamics, we develop a perturbative scheme in which the effect of periodic driving can be treated nonperturbatively to any order of perturbation in anharmonicity. We spell out the conditions under which the asymptotic distributions exist and are periodic, and show that the distributions can be determined exactly in terms of the solutions of the associated Hill equations. We further find that the oscillating states of these driven systems are stable against anharmonic perturbations.

arXiv comment11 pages, 2 figures

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Cited by in corpus (4)

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