Entanglement detection in hybrid optomechanical systems

Details Entanglement detection in hybrid optomechanical systems Entanglement detection in hybrid optomechanical systems

2011-05-03

arxiv.org/abs/1105.0513v2

Phys. Rev. A 83, 052324 (2011)

Physics

Quantum Physics

6 pages, 7 figures, published version

Scientific paper

10.1103/PhysRevA.83.052324

We study a device formed by a Bose Einstein condensate (BEC) coupled to the field of a cavity with a moving end-mirror and find a working point such that the mirror-light entanglement is reproduced by the BEC-light quantum correlations. This provides an experimentally viable tool for inferring mirror-light entanglement with only a limited set of assumptions. We prove the existence of tripartite entanglement in the hybrid device, persisting up to temperatures of a few milli-Kelvin, and discuss a scheme to detect it.

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