Steady-state Mechanical Squeezing in an Optomechanical System via Duffing Nonlinearity

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.

8 pages, 5 figures, published in PRA

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Cited by in corpus (41)

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• Optomechanical quadrature squeezing in the non-Markovian regime
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• Large and robust mechanical squeezing of optomechanical systems in a highly unresolved sideband regime via Duffing nonlinearity and intracavity squeezed light
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• Quantum entanglement assisted via Duffing nonlinearity
• Steady-state squeezing transfer in hybrid optomechanics
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• Amplifying Two-Mode Squeezing in Nanomechanical Resonators
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• Optimized mechanical quadrature squeezing beyond the 3-dB limit via a gradient-descent algorithm
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• Simultaneous cooling of degenerate mechanical modes in unresolved sideband regime via optical and mechanical nonlinearities
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• Generating strong mechanical squeezing via combined squeezed vacuum field and two-tone driving