Entanglement detection in hybrid optomechanical systems

Journal Article · Sun May 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.052324· OSTI ID:21546741

De Chiara, Gabriele ^[1]; Paternostro, Mauro ^[2]; Palma, G Massimo ^[3]

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1. Fisica Teorica: Informacio i Fenomens Quantics, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Spain)
2. Centre for Theoretical Atomic, Molecular and Optical Physics, School of Mathematics and Physics, Queen's University, Belfast BT7 1NN (United Kingdom)
3. NEST, Istituto Nanoscienze-CNR and Dipartimento di Fisica, Universita degli Studi di Palermo, Via Archirafi 36, I-90123 Palermo (Italy)

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.

• OSTI ID: 21546741
• Journal Information: Physical Review. A, Vol. 83, Issue 5; Other Information: DOI: 10.1103/PhysRevA.83.052324; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN CONDENSATION
CAVITIES
CORRELATIONS
DETECTION
MIRRORS
QUANTUM ENTANGLEMENT
TEMPERATURE RANGE 0000-0013 K
VISIBLE RADIATION
ELECTROMAGNETIC RADIATION
RADIATIONS
TEMPERATURE RANGE