Strong squeezing via phonon mediated spontaneous generation of photon pairs

Abstract

We propose a scheme generating robust squeezed light by using double cavity optomechanical system driven by a blue detuned laser in one cavity and by a red detuned laser in the other. This double cavity system is shown to mimic effectively an interaction that is similar to the one for the downconverter, which is known to be a source of strong squeezing for the light fields. There are however distinctions as the phonons, which lead to such an interaction, can contribute to the quantum noise. We show that the squeezing of the output fields in the order of $10$dB can be achieved even at the mirror temperature at the order of $10$mK.

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• Quantifying quantumness of correlations using Gaussian Rényi-2 entropy in optomechanical interfaces
• Enhancing squeezing and nonclassicality of light in atom-optomechanical systems
• Optimized mechanical quadrature squeezing beyond the 3-dB limit via a gradient-descent algorithm
• Producing entangled photon pairs and quantum squeezed states in plasmas