Entanglement of orbital angular momentum states between an ensemble of cold atoms and a photon
Entanglement of orbital angular momentum states between an ensemble of cold atoms and a photon
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DOI：
10.1103/physreva.74.053809
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发表时间：
2006-11-01
影响因子：
2.9
通讯作者：
Kozuma, M.
中科院分区：
文献类型：
--
作者：
Inoue, R.;Kanai, N.;Kozuma, M.
近年来，利用集体增强技术成功地实现了原子系综与单光子的纠缠[D. N. Matsukevich，Phys. Rev. Lett. 95，040405（2005）]，其中原子内部态和光子偏振态以非局域方式相关。在这里，我们通过实验阐明了在原子系综和光子系统中，也存在着与空间自由度有关的纠缠。讨论了远程原子系综之间高维纠缠的产生及其在凝聚态物理中的应用。
Recently, atomic ensemble and single photons were successfully entangled by using collective enhancement [D. N. Matsukevich , Phys. Rev. Lett. 95, 040405 (2005)], where atomic internal states and photonic polarization states were correlated in a nonlocal manner. Here, we experimentally clarified that in an ensemble of atoms and a photon system, there also exists an entanglement concerned with spatial degrees of freedom. Generation of higher-dimensional entanglement between remote atomic ensemble and an application to condensed matter physics are also discussed.