Continuous variable entanglement using cold atoms.
Continuous variable entanglement using cold atoms.
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DOI：
10.1103/physrevlett.92.123601
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发表时间：
2003-06
影响因子：
8.6
通讯作者：
V. Josse;A. Dantan;A. Bramati;M. Pinard;E. Giacobino
中科院分区：
文献类型：
--
作者：
V. Josse;A. Dantan;A. Bramati;M. Pinard;E. Giacobino
在高精细度光腔中，利用相干线偏振光场与冷原子相互作用产生正交纠缠和偏振纠缠。利用原子与光场的非线性相互作用产生两个偏振方向正交的压缩模，并利用这两个压缩模产生一对不可分光束，通过检验Duan等人最近导出的连续变量不可分性判据，证明了这对不可分光束的纠缠。2722（2000）]和计算形成的纠缠[物理学评论Lett. 91，107901（2003）]]。
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 [Phys. Rev. Lett. 91, 107901 (2003)]].