Teleportation of entangled states
Teleportation of entangled states
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DOI：
10.1088/1464-4266/3/1/355
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发表时间：
2001-02
期刊：
影响因子：
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通讯作者：
V. N. Gorbachev;A. Zhiliba;A. Trubilko
中科院分区：
文献类型：
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作者：
V. N. Gorbachev;A. Zhiliba;A. Trubilko
使用多粒子量子通道考虑离散和连续变量的一些纯纠缠态的隐形传输；特别是 Greenberger-Horne-Zeilinger 通道。由于量子通道的特性，我们发现离散和连续版本的协议都具有相同的特征。这样一些纠缠态就可以完美传送；与一对一协议相比，需要非贝尔状态测量，在一对一协议中，未知状态只能由所有接收器恢复。对于连续变量的隐形传态，讨论了使用压缩光态的光学实现。
Teleportation of some pure entangled states of discrete and continuous variables is considered using a multi-particle quantum channel; particularly a Greenberger-Horne-Zeilinger channel. Both the protocols we have found for the discrete and continuous versions have identical features due to the properties of the quantum channel. In this way some entangled states can be teleported perfectly; a non-Bell-state measurement is needed in contrast to the one-by-one protocol where an unknown state can be recovered by all receivers only. For teleportation of continuous variables an optical implementation using squeezed light states is discussed.