Synchronization of an optomechanical system to an external drive

Ehud Amitai, Niels Lörch, Andreas Nunnenkamp, Stefan Walter, and Christoph Bruder
Phys. Rev. A 95, 053858 – Published 24 May 2017

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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  • Received 14 March 2017

DOI:https://doi.org/10.1103/PhysRevA.95.053858

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Ehud Amitai1, Niels Lörch1, Andreas Nunnenkamp2, Stefan Walter3, and Christoph Bruder1

  • 1Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
  • 2Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
  • 3Max Planck Institute for the Science of Light, Staudtstrasse 2, 91058 Erlangen, Germany

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Issue

Vol. 95, Iss. 5 — May 2017

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