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arXiv · 2409.13323

Generation of strong mechanical squeezing through the joint effect of two-tone driving and parametric pumping

Xiao-Jie Wu·Huan-Huan Cheng·Qiannan Wu·Cheng-Hua Bai·Shao-Xiong Wu
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Abstract

We propose an innovative scheme to efficiently prepare strong mechanical squeezing through utilizing the synergistic mechanism of two-tone driving and parametric pumping in an optomechanical system. By reasonable choosing the system parameters, the proposal highlights the following prominent advantages: the squeezing effect of the cavity field induced by the optical parametric amplifier can be transferred to the mechanical oscillator, which has been squeezed by the two-tone driving, and the degree of squeezing of the mechanical oscillator will surpass that obtained by any single mechanism; the joint mechanism can enhance the degree of squeezing significantly and break the 3 dB mechanical squeezing limit, which is particularly evident in range where the red/blue-detuned ratio is sub-optimal; the mechanical squeezing achieved through this distinctive joint mechanism exhibits notable robustness against both thermal noise and decay of mechanical oscillator. Our project offers a versatile and efficient approach for generating strong mechanical squeezing across a wide range of conditions.

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Xiao-Jie Wu, Huan-Huan Cheng, Qiannan Wu, Cheng-Hua Bai, Shao-Xiong Wu. 2024-09-20. Generation of strong mechanical squeezing through the joint effect of two-tone driving and parametric pumping. https://doi.org/10.1364/oe.538074

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