Twin-beam-enhanced displacement measurement of a membrane in a cavity

Xinrui Wei; Jiteng Sheng; Yuelong Wu; Wuming Liu; Haibin Wu

doi:10.1063/1.5129547

Twin-beam-enhanced displacement measurement of a membrane in a cavity

Xinrui Wei, Jiteng Sheng, Yuelong Wu, Wuming Liu, Haibin Wu

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We report an experimental demonstration of quantum-enhanced displacement measurement of a membrane in an optical cavity by using bright quantum correlated light to surpass the shot-noise limit (SNL). The optical cavity enhances the displacement signal and the twin beams suppress the noise background 3 dB below the SNL at an equivalent optical power. Thus, the signal-to-noise ratio is significantly improved by simultaneously using optical cavities and twin beams, and a sensitivity of 200 am / Hz is achieved. The frequency fluctuations of twin beams are analyzed and reduced by using optical twin cavities. These results provide a useful method for precision measurements as well as to control cavity optomechanical systems with nonclassical light.

Original language	English
Journal	Applied Physics Letters
Volume	115
Issue number	25
DOIs	https://doi.org/10.1063/1.5129547
State	Published - 16 Dec 2019
Externally published	Yes

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10.1063/1.5129547

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title = "Twin-beam-enhanced displacement measurement of a membrane in a cavity",

abstract = "We report an experimental demonstration of quantum-enhanced displacement measurement of a membrane in an optical cavity by using bright quantum correlated light to surpass the shot-noise limit (SNL). The optical cavity enhances the displacement signal and the twin beams suppress the noise background 3 dB below the SNL at an equivalent optical power. Thus, the signal-to-noise ratio is significantly improved by simultaneously using optical cavities and twin beams, and a sensitivity of 200 am / Hz is achieved. The frequency fluctuations of twin beams are analyzed and reduced by using optical twin cavities. These results provide a useful method for precision measurements as well as to control cavity optomechanical systems with nonclassical light.",

author = "Xinrui Wei and Jiteng Sheng and Yuelong Wu and Wuming Liu and Haibin Wu",

note = "Publisher Copyright: {\textcopyright} 2019 Author(s).",

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doi = "10.1063/1.5129547",

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T1 - Twin-beam-enhanced displacement measurement of a membrane in a cavity

AU - Wei, Xinrui

AU - Sheng, Jiteng

AU - Wu, Yuelong

AU - Liu, Wuming

AU - Wu, Haibin

PY - 2019/12/16

Y1 - 2019/12/16

N2 - We report an experimental demonstration of quantum-enhanced displacement measurement of a membrane in an optical cavity by using bright quantum correlated light to surpass the shot-noise limit (SNL). The optical cavity enhances the displacement signal and the twin beams suppress the noise background 3 dB below the SNL at an equivalent optical power. Thus, the signal-to-noise ratio is significantly improved by simultaneously using optical cavities and twin beams, and a sensitivity of 200 am / Hz is achieved. The frequency fluctuations of twin beams are analyzed and reduced by using optical twin cavities. These results provide a useful method for precision measurements as well as to control cavity optomechanical systems with nonclassical light.

AB - We report an experimental demonstration of quantum-enhanced displacement measurement of a membrane in an optical cavity by using bright quantum correlated light to surpass the shot-noise limit (SNL). The optical cavity enhances the displacement signal and the twin beams suppress the noise background 3 dB below the SNL at an equivalent optical power. Thus, the signal-to-noise ratio is significantly improved by simultaneously using optical cavities and twin beams, and a sensitivity of 200 am / Hz is achieved. The frequency fluctuations of twin beams are analyzed and reduced by using optical twin cavities. These results provide a useful method for precision measurements as well as to control cavity optomechanical systems with nonclassical light.

UR - https://www.scopus.com/pages/publications/85076813056

U2 - 10.1063/1.5129547

DO - 10.1063/1.5129547

M3 - 文章

AN - SCOPUS:85076813056

SN - 0003-6951

VL - 115

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 25

ER -

Twin-beam-enhanced displacement measurement of a membrane in a cavity

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