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  • 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
  • (Optica Publishing Group, 2017),
  • paper EA_11_4

Four-wave mixing and vacuum squeezing in polariton microcavities

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Abstract

In a recent paper [1] it has been shown how a bichromatic fast driving of optomechanical (optical domain) and superconducting circuit systems (microwave domain), operating in a limit where they present a non-linear Kerr-type interaction, can give rise to very strong vacuum squeezing. The driving with two close frequencies of a Kerr cavity changes the usual bistability bifurcation behaviour that takes place under monochromatic driving, into a degenerate four-wave mixing bifurcation, where a phase-bistable component starts oscillating spontaneously at a frequency that lies halfway between the two driving frequencies [2]. This resembles the physics of the optical parametric oscillator threshold, devices that has produced experimentally the strongest squeezing up to now. Associated to this bifurcation there is a strong reduction of the quantum fluctuations for a given quadrature of the electromagnetic field, resulting in vacuum squeezing, the reduction takes place at the central non-injected frequency.

© 2017 IEEE

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