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arXiv 2104.14723quant-phphysics.optics
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量子存储器的测量器件无关验证

Measurement-Device-Independent Verification of a Quantum Memory

Yong Yu, Peng-Fei Sun, Yu-Zhe Zhang, Bing Bai, Yu-Qiang Fang, Xi-Yu Luo, Zi-Ye An, Jun Li, Jun Zhang, Feihu Xu, Xiao-Hui Bao, Jian-Wei Pan

摘要:

在本文中,我们报告了一个实验,验证了原子系综量子存储器通过测量设备无关的计划。在一个原子系综中通过里德伯阻塞产生的单个光子通过电磁诱导透明存储在另一个原子系综中。在长时间存储之后,该光子被取回并与第二光子干涉以执行联合贝尔态测量(BSM)。每个光子的量子态在每次运行中分别基于量子随机数发生器来选择。通过评估随机状态和BSM结果之间的相关性,我们证明我们的记忆是真正的纠缠保持。

英文摘要:

In this paper we report an experiment that verifies an atomic-ensemble quantum memory via a measurement-device-independent scheme. A single photon generated via Rydberg blockade in one atomic ensemble is stored in another atomic ensemble via electromagnetically induced transparency. After storage for a long duration, this photon is retrieved and interfered with a second photon to perform joint Bell-state measurement (BSM). Quantum state for each photon is chosen based on a quantum random number generator respectively in each run. By evaluating correlations between the random states and BSM results, we certify that our memory is genuinely entanglement-preserving.

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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