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Observation of intensity squeezing in resonance fluorescence from a solid-state device

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Wang_2020_Intensity_squeezing_in_resonance_PRL_AAM.pdf (464.6Kb)
Date
09/10/2020
Author
Wang, Hui
Qin, Jian
Chen, Si
Chen, Ming-Cheng
You, Xiang
Ding, Xing
Huo, Y.-H.
Yu, Ying
Schneider, C.
Höfling, Sven
Sully, Marlan
Lu, Chao-Yang
Pan, Jian-Wei
Keywords
QC Physics
TK Electrical engineering. Electronics Nuclear engineering
T-NDAS
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Abstract
Intensity 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.
Citation
Wang , 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 . https://doi.org/10.1103/PhysRevLett.125.153601
Publication
Physical Review Letters
Status
Peer reviewed
DOI
https://doi.org/10.1103/PhysRevLett.125.153601
ISSN
0031-9007
Type
Journal article
Rights
Copyright © 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 https://journals.aps.org/prl/accepted/e207aY67G8a1fc7c06988396d08ebead7dfb9179f
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  • University of St Andrews Research
URL
https://journals.aps.org/prl/accepted/e207aY67G8a1fc7c06988396d08ebead7dfb9179f
URI
http://hdl.handle.net/10023/20586

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