arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1908.09242quant-phphysics.atom-phphysics.optics
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基于冷原子系综的量子非互易性实验实现

Experimental realization of quantum non-reciprocity based on cold atomic ensembles

Ming-Xin Dong, Yi-Chen Yu, Ying-Hao Ye, Wei-Hang Zhang, En-Ze Li, Lei Zeng, Guang-Can Guo, Dong-Sheng Ding, Bao-Sen Shi

摘要:

与电子电路中广泛使用的对应物类似,全光非互易器件是经典和量子光学信息处理的基本构建块。接近这种设备的基本极限,其中单个光子的传播表现出良好的非互易特性,需要单个光子和物质之间的非对称强耦合。不幸的是,这一目标尚未实现。本文提出并实验实现了一种基于冷原子的低光损耗、高隔离度(大于14 dB)的量子非互易器件。此外,还实现了量子比特的非互易传输和真单光子的非互易量子存储。这些结果对于构建量子网络中的量子非互易器件具有重要意义。

英文摘要:

In analog to counterparts widely used in electronic circuits, all optical non-reciprocal devices are basic building blocks for both classical and quantum optical information processing. Approaching the fundamental limit of such devices, where the propagation of a single photon exhibits a good non-reciprocal characteristic, requires an asymmetric strong coupling between a single photon and a matter. Unfortunately it has been not realized yet. Here, we propose and experimentally realize a quantum non-reciprocity device with low optical losses and a high isolation of larger than 14 dB based on the cold atoms. Besides, the non-reciprocal transmission of a quantum qubit and non-reciprocal quantum storage of a true single photon are also realized. All results achieved would be very promising in building up quantum non-reciprocal devices for quantum networks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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