Continuous variable entanglement using cold atoms

被引：127

作者：

Josse, V ^{[1
]}

Dantan, A ^{[1
]}

Bramati, A ^{[1
]}

Pinard, M ^{[1
]}

Giacobino, E ^{[1
]}

机构：

[1] Univ Paris 06, Lab Kastler Brossel, F-75252 Paris 05, France

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.92.123601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an experimental demonstration of both quadrature and polarization entanglement generated via the interaction between a coherent linearly polarized field and cold atoms in a high finesse optical cavity. The nonlinear atom-field interaction produces two squeezed modes with orthogonal polarizations which are used to generate a pair of nonseparable beams, the entanglement of which is demonstrated by checking the inseparability criterion for continuous variables recently derived by Duan et al. [Phys. Rev. Lett. 84, 2722 (2000)] and calculating the entanglement of formation [Giedke et al., Phys. Rev. Lett. 91, 107901 (2003)].

引用

页码：123601 / 1

页数：4

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