Quantum state transfer and entanglement distribution among distant nodes in a quantum network
Quantum state transfer and entanglement distribution among distant nodes in a quantum network
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DOI：
10.1103/physrevlett.78.3221
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发表时间：
1997-04-21
影响因子：
8.6
通讯作者：
Mabuchi, H
中科院分区：
文献类型：
--
作者：
Cirac, JI;Zoller, P;Mabuchi, H
我们提出了一个方案，利用光子位于量子网络的空间分离的节点的原子之间的理想量子传输。传输协议采用特殊的激光脉冲，激发发送节点光腔内的原子，使其状态映射为时间对称的光子波包，该光子波包将进入接收节点的腔体，并以单位概率被那里的原子吸收。我们的方案的实施将使可靠的传输或空间遥远的原子之间的纠缠共享。
We propose a scheme to utilize photons for ideal quantum transmission between atoms located at spatially separated nodes of a quantum network. The transmission protocol employs special laser pulses that excite an atom inside an optical cavity at the sending node so that its state is mapped into a time-symmetric photon wave packet that will enter a cavity at the receiving node and be absorbed by an atom there with unit probability. Implementation of our scheme would enable reliable transfer or sharing of entanglement among spatially distant atoms.