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

Hui Wang; Jian Qin; Si Chen; Ming-Cheng Chen; Xiang You; Xing Ding; Y.-H. Huo; Ying Yu; C. Schneider; Sven Höfling; Marlan Sully; Chao-Yang Lu; Jian-Wei Pan

doi:10.1103/PhysRevLett.125.153601

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

Hui Wang, Jian Qin, Si Chen, Ming-Cheng Chen, Xiang You, Xing Ding, Y.-H. Huo, Ying Yu, C. Schneider, Sven Höfling, Marlan Sully, Chao-Yang Lu, Jian-Wei Pan

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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.

Original language	English
Journal	Physical Review Letters
Volume	125
Issue number	15
Early online date	7 Oct 2020
DOIs	https://doi.org/10.1103/PhysRevLett.125.153601
Publication status	Published - 9 Oct 2020

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10.1103/PhysRevLett.125.153601

Wang-2020-Intensity-squeezing-in-resonance-PRL-AAM
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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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.",

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AU - Wang, Hui

AU - Qin, Jian

AU - Chen, Si

AU - Chen, Ming-Cheng

AU - You, Xiang

AU - Ding, Xing

AU - Huo, Y.-H.

AU - Yu, Ying

AU - Schneider, C.

AU - Höfling, Sven

AU - Sully, Marlan

AU - Lu, Chao-Yang

AU - Pan, Jian-Wei

PY - 2020/10/9

Y1 - 2020/10/9

N2 - 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.

AB - 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.

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VL - 125

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

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

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