Phase estimation for an SU(1,1) interferometer in the presence of phase diffusion and photon losses

Xiu Ling Hu; Dong Li; L. Q. Chen; Keye Zhang; Weiping Zhang; Chun Hua Yuan

doi:10.1103/PhysRevA.98.023803

Phase estimation for an SU(1,1) interferometer in the presence of phase diffusion and photon losses

Xiu Ling Hu, Dong Li, L. Q. Chen, Keye Zhang, Weiping Zhang, Chun Hua Yuan

School of Physics and Electronic Science

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

24 Scopus citations

Abstract

We address SU(1,1) interferometry in the presence of phase diffusion and photon losses and evaluate analytically the corresponding quantum Fisher information. Using this result we determine the thresholds on the noise parameters, as a function of total mean photon number, in order to beat the standard quantum limit to phase sensitivity.

Original language	English
Article number	023803
Journal	Physical Review A
Volume	98
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.98.023803
State	Published - 2 Aug 2018

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title = "Phase estimation for an SU(1,1) interferometer in the presence of phase diffusion and photon losses",

abstract = "We address SU(1,1) interferometry in the presence of phase diffusion and photon losses and evaluate analytically the corresponding quantum Fisher information. Using this result we determine the thresholds on the noise parameters, as a function of total mean photon number, in order to beat the standard quantum limit to phase sensitivity.",

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AU - Hu, Xiu Ling

AU - Li, Dong

AU - Chen, L. Q.

AU - Zhang, Keye

AU - Zhang, Weiping

AU - Yuan, Chun Hua

PY - 2018/8/2

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AB - We address SU(1,1) interferometry in the presence of phase diffusion and photon losses and evaluate analytically the corresponding quantum Fisher information. Using this result we determine the thresholds on the noise parameters, as a function of total mean photon number, in order to beat the standard quantum limit to phase sensitivity.

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Phase estimation for an SU(1,1) interferometer in the presence of phase diffusion and photon losses

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