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arXiv · 2201.10893

Enhancing the force sensitivity of squeezed light optomechanical interferometer

Sreeshna Subhash·Sanket Das·Tarak Nath Dey·Yong Li·Sankar Davuluri
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Abstract

Application of frequency-dependent squeezed vacuum improves the force sensitivity of optomechanical interferometer beyond the standard quantum limit by a factor of $e^{-r}$, where $r$ is the squeezing parameter. In this work, we show that the application of squeezed light along with quantum optical restoring force can enhance the sensitivity beyond the standard quantum limit by a factor of $\sqrt{e^{-2r}\zeta/4\Delta}$, where $0< \zeta/\Delta <1$, with $\zeta$ as the optomechanical cavity decay rate and $\Delta$ as the detuning between cavity eigenfrequency and driving field. The technique described in this article is restricted to frequencies much smaller than the resonance frequency of the optomechanical mirror.

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Sreeshna Subhash, Sanket Das, Tarak Nath Dey, Yong Li, Sankar Davuluri. 2022-01-26. Enhancing the force sensitivity of squeezed light optomechanical interferometer. https://doi.org/10.1364/oe.476672

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