Entanglement Rate for Gaussian Continuous Variable Beams

Abstract

We derive a general expression that quantifies the total entanglement production rate in continuous variable systems, where a source emits two entangled Gaussian beams with arbitrary correlators.This expression is especially useful for situations where the source emits an arbitrary frequency spectrum,e.g. when cavities are involved. To exemplify its meaning and potential, we apply it to a four-mode optomechanical setup that enables the simultaneous up- and down-conversion of photons from a drive laser into entangled photon pairs. This setup is efficient in that both the drive and the optomechanical up- and down-conversion can be fully resonant.

18 pages, 6 figures

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Cited by in corpus (8)

• Entanglement optimization of filtered output fields in cavity optomechanics
• Generating two continuous entangled microwave beams using a dc-biased Josephson junction
• Perfect Optical Nonreciprocity in a Double-Cavity Optomechanical System
• Distant entanglement enhanced in $\mathcal{P}\mathcal{T}$-symmetric optomechanics
• Enhanced output entanglement with reservoir engineering
• Enhancement of entanglement in distant micromechanical mirrors using parametric interactions
• Quantum signatures of transitions from stable fixed points to limit cycles in optomechanical systems
• Double-passage ground-state cooling induced by quantum interference in the hybrid optomechanical system