Experimental entanglement distribution by separable states.
Experimental entanglement distribution by separable states.
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DOI：
10.1103/physrevlett.111.230505
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发表时间：
2013-03
影响因子：
8.6
通讯作者：
C. Vollmer;D. Schulze;T. Eberle;V. Händchen;J. Fiurášek;R. Schnabel
中科院分区：
文献类型：
--
作者：
C. Vollmer;D. Schulze;T. Eberle;V. Händchen;J. Fiurášek;R. Schnabel
在宏观上分离的各方之间分配纠缠对于未来的量子信息网络至关重要。令人惊讶的是，理论上已经证明，两个遥远的系统可以通过发送第三个不与它们纠缠的系统来纠缠。在这里，我们实验性地分配纠缠，并成功地证明了我们的传输光束确实没有与各方的本地系统纠缠。我们的工作展示了纠缠分布的一个意想不到的变体，并提高了对设计多体量子网络所必需的理解。
Distribution of entanglement between macroscopically separated parties is crucial for future quantum information networks. Surprisingly, it has been theoretically shown that two distant systems can be entangled by sending a third system that is not entangled with either of them. Here, we experimentally distribute entanglement and successfully prove that our transmitted light beam is indeed not entangled with the parties' local systems. Our work demonstrates an unexpected variant of entanglement distribution and improves the understanding necessary to engineer multipartite quantum networks.