Steady-state mechanical squeezing in an optomechanical system via Duffing nonlinearity

Xin-You Lü, Jie-Qiao Liao, Lin Tian, and Franco Nori
Phys. Rev. A 91, 013834 – Published 23 January 2015

Abstract

Quantum squeezing in mechanical systems is not only a key signature of macroscopic quantum effects, but can also be utilized to advance the metrology of weak forces. Here we show that strong mechanical squeezing in the steady state can be generated in an optomechanical system with mechanical nonlinearity and red-detuned monochromatic driving on the cavity mode. The squeezing is achieved as the joint effect of nonlinearity-induced parametric amplification and cavity cooling and is robust against thermal fluctuations of the mechanical mode. We also show that the mechanical squeezing can be detected via an ancilla cavity mode.

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  • Received 1 March 2014
  • Publisher error corrected 27 January 2015

DOI:https://doi.org/10.1103/PhysRevA.91.013834

©2015 American Physical Society

Corrections

27 January 2015

Erratum

Authors & Affiliations

Xin-You Lü1,2, Jie-Qiao Liao2, Lin Tian3,*, and Franco Nori2,4,†

  • 1School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
  • 2CEMS, RIKEN, Saitama 351-0198, Japan
  • 3School of Natural Sciences, University of California, Merced, California 95343, USA
  • 4Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA

  • *ltian@ucmerced.edu
  • fnori@riken.jp

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Vol. 91, Iss. 1 — January 2015

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