Photonics Research, 2020, 8 (2): 02000151, Published Online: Feb. 10, 2020   

Strong mechanical squeezing in an optomechanical system based on Lyapunov control

Author Affiliations
Abstract
We propose a scheme to generate strong squeezing of a mechanical oscillator in an optomechanical system through Lyapunov control. Frequency modulation of the mechanical oscillator is designed via Lyapunov control. We show that the momentum variance of the mechanical oscillator decreases with time evolution in a weak coupling case. As a result, strong mechanical squeezing is realized quickly (beyond 3 dB). In addition, the proposal is immune to cavity decay. Moreover, we show that the obtained squeezing can be detected via an ancillary cavity mode with homodyne detection.
References

. Strong mechanical squeezing in an optomechanical system based on Lyapunov control[J]. Photonics Research, 2020, 8(2): 02000151.

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