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.

引用

页数：6

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