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Synchronization of an optomechanical system to an external drive

Quantum Physics 2017-05-26 v2 Mesoscale and Nanoscale Physics

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.

Keywords

Cite

@article{arxiv.1703.04344,
  title  = {Synchronization of an optomechanical system to an external drive},
  author = {Ehud Amitai and Niels Lörch and Andreas Nunnenkamp and Stefan Walter and Christoph Bruder},
  journal= {arXiv preprint arXiv:1703.04344},
  year   = {2017}
}

Comments

9 pages, 6 figures