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arXiv · 1703.04344

Synchronization of an optomechanical system to an external drive

Ehud Amitai·Niels Lörch·Andreas Nunnenkamp·Stefan Walter·Christoph Bruder
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Abstract

Optomechanical systems driven by an effective blue detuned laser can exhibit self-sustained oscillations of the mechanical oscillator. These self-oscillations are a prerequisite for the observation of synchronization. Here, we study the synchronization of the mechanical oscillations to an external reference drive. We study two cases of reference drives: (1) An additional laser applied to the optical cavity; (2) A mechanical drive applied directly to the mechanical oscillator. Starting from a master equation description, we derive a microscopic Adler equation for both cases, valid in the classical regime in which the quantum shot noise of the mechanical self-oscillator does not play a role. Furthermore, we numerically show that, in both cases, synchronization arises also in the quantum regime. The optomechanical system is therefore a good candidate for the study of quantum synchronization.

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Ehud Amitai, Niels Lörch, Andreas Nunnenkamp, Stefan Walter, Christoph Bruder. 2017-05-25. Synchronization of an optomechanical system to an external drive. https://doi.org/10.1103/physreva.95.053858

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