Measurement-Device-Independent Verification of a Quantum Memory
- URL: http://arxiv.org/abs/2104.14723v1
- Date: Fri, 30 Apr 2021 02:03:40 GMT
- Title: Measurement-Device-Independent Verification of a Quantum Memory
- Authors: 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
- Abstract summary: A single photon generated via Rydberg blockade in one atomic ensemble is stored in another atomic ensemble via electromagnetically induced transparency.
By evaluating correlations between the random states and Bell-state measurement results, we certify that our memory is genuinely entanglement-preserving.
- Score: 22.470746718500354
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: 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.
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