Field demonstration of distributed quantum sensing without post-selection

Si-Ran Zhao,Yu-Zhe Zhang,Wen-Zhao Liu,Jian-Yu Guan,Weijun Zhang,Cheng-Long Li,Bing Bai,Ming-Han Li,Yang Liu,Lixing You,Jun Zhang,Jingyun Fan,Feihu Xu,Qiang Zhang,Jian-Wei Pan

2021 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC)（2021）

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摘要

We demonstrate distributed quantum sensing in field and show the unconditional violation (without post-selection) of shot-noise limit up to 0.916 dB with the averaged heralding efficiency of 73.88% for the field distance of 240 m. (C) 2021 The Author(s)

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关键词

quantum,sensing,post-selection

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