Entanglement detection in hybrid optomechanical systems

被引：77
|
作者：
De Chiara, Gabriele [1 ]
Paternostro, Mauro [2 ]
Palma, G. Massimo [3 ,4 ]
机构：
[1] Univ Autonoma Barcelona, E-08193 Barcelona, Spain
[2] Queens Univ Belfast, Sch Math & Phys, Ctr Theoret Atom Mol & Opt Phys, Belfast BT7 1NN, Antrim, North Ireland
[3] Univ Palermo, Ist Nanosci CNR, NEST, I-90123 Palermo, Italy
[4] Univ Palermo, Dipartimento Fis, I-90123 Palermo, Italy
来源：
PHYSICAL REVIEW A | 2011年 / 83卷 / 05期
基金：
英国工程与自然科学研究理事会;
关键词：
CAVITY;
D O I：
10.1103/PhysRevA.83.052324
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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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收藏
页数：6
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