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- W4293168082 abstract "One of the quantum metrology goals is to improve the precision in the measurement of a small optical phase introduced in one optical mode in an interferometer, i.e., phase sensing. In this paper, we obtain the relative phase distribution introduced by Luis and S'anchez-Soto (LSS) [Phys. Rev. A $mathbf{53}$, 495 (1996)] for several two-mode pure quantum light states useful in quantum metrology. We show that, within the numerical precision of our calculations, the Fisher information obtained from the LSS relative phase distribution is equal to the quantum Fisher information for the considered states (the average difference for the tested states is smaller than 0.1%). Our results indicate that the LSS relative phase distribution can be used to predict the minimum uncertainty possible in the process of phase sensing in quantum metrology, since this uncertainty depends on the quantum Fisher information, at least for pure states." @default.
- W4293168082 created "2022-08-27" @default.
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- W4293168082 date "2022-08-24" @default.
- W4293168082 modified "2023-09-27" @default.
- W4293168082 title "Relative Phase Distribution and the Precision of Optical Phase Sensing in Quantum Metrology" @default.
- W4293168082 doi "https://doi.org/10.48550/arxiv.2208.11524" @default.
- W4293168082 hasPublicationYear "2022" @default.
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