Secure direct communication using the ‘polarization’ entangled atomic ensembles
Secure direct communication using the ‘polarization’ entangled atomic ensembles
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DOI：
10.1088/0953-4075/37/3/015
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发表时间：
2004-02
期刊：
影响因子：
--
通讯作者：
P. Xue;G. Guo
中科院分区：
文献类型：
--
作者：
P. Xue;G. Guo
我们提出了一个具有潜在实验实现的方案，在两个原子系综之间产生“极化”纠缠，并展示了其中一个应用-一种新的安全通信，允许渐近密钥分发和准安全直接通信。该方案涉及激光操纵原子系综、可调四分之一波和半波片、分束器、偏振分束器和单光子探测器，非常符合当前实验技术的现状。
We propose a scheme with potential experimental realization to generate 'polarization' entanglement between two atomic ensembles and show one of the applications—a novel secure communication allowing asymptotically key distribution and quasisecure direct communication. The scheme involves laser manipulation of atomic ensembles, adjustable quarter- and half-wave plates, beam splitters, polarizing beam splitters and single-photon detectors, and well fits the status of the current experimental technology.