Entanglement detection in hybrid optomechanical systems

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76 Citations (Scopus)


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.
Original languageEnglish
Article number052324
Pages (from-to)052324
Number of pages1
JournalPhysical Review A
Issue number5
Publication statusPublished - 26 May 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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