Entanglement Rate for Gaussian Continuous Variable Beams

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 spectru...

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Bibliographic Details
Published in:arXiv.org 2016-03
Main Authors: Zhi Jiao Deng, Habraken, Steven J M, Marquardt, Florian
Format: Article
Language:English
Subjects:
Continuity (mathematics)
Conversion
Correlators
Entanglement
Frequency spectrum
Gaussian beams (optics)
Photons
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.1406.7815