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dc.contributor.authorWang, Hui
dc.contributor.authorQin, Jian
dc.contributor.authorChen, Si
dc.contributor.authorChen, Ming-Cheng
dc.contributor.authorYou, Xiang
dc.contributor.authorDing, Xing
dc.contributor.authorHuo, Y.-H.
dc.contributor.authorYu, Ying
dc.contributor.authorSchneider, C.
dc.contributor.authorHöfling, Sven
dc.contributor.authorSully, Marlan
dc.contributor.authorLu, Chao-Yang
dc.contributor.authorPan, Jian-Wei
dc.identifier.citationWang , H , Qin , J , Chen , S , Chen , M-C , You , X , Ding , X , Huo , Y-H , Yu , Y , Schneider , C , Höfling , S , Sully , M , Lu , C-Y & Pan , J-W 2020 , ' Observation of intensity squeezing in resonance fluorescence from a solid-state device ' , Physical Review Letters , vol. 125 , no. 15 .
dc.identifier.otherPURE: 270030851
dc.identifier.otherPURE UUID: c0cd07fa-f4ac-4333-bb3d-c7949f3fc2ce
dc.identifier.otherWOS: 000575690400003
dc.identifier.otherScopus: 85093365656
dc.description.abstractIntensity squeezing i.e. photon number fluctuations below the shot noise limit is a fundamental aspect of quantum optics and has wide applications in quantum metrology. It was predicted in 1979 that the intensity squeezing could be observed in resonance fluorescence from a two-level quantum system. Yet, its experimental observation in solid states was hindered by inefficiencies in generating, collecting and detecting resonance fluorescence. Here, we report the intensity squeezing in a single-mode fibre-coupled resonance fluorescence single-photon source based on a quantum dot-micropillar system. We detect pulsed single-photon streams with 22.6% system efficiency, which show subshot-noise intensity fluctuation with an intensity squeezing of . We estimate a corrected squeezing of at the first lens. The observed intensity squeezing provides the last piece of the fundamental picture of resonance fluorescence; which can be used as a new standard for optical radiation and in scalable quantum metrology with indistinguishable single photons.
dc.relation.ispartofPhysical Review Lettersen
dc.rightsCopyright © 2020 American Physical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.titleObservation of intensity squeezing in resonance fluorescence from a solid-state deviceen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.description.statusPeer revieweden

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