Optimal Quantum Measurements for Phase Estimation in Interferometry

B. C. Sanders, G. J. Milburn and Zhongxi Zhang
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B. C. Sanders: Macquarie University, School of Mathematics, Physics, Computing and Electronics
G. J. Milburn: The University of Queensland, Department of Physics
Zhongxi Zhang: The University of Queensland, Department of Physics

A chapter in Quantum Communication, Computing, and Measurement, 1997, pp 309-315 from Springer

Abstract: Abstract Optimal quantum measurements in optical interferometry yield a 1/n scaling of phase uncertainty Δø, where n is the number of photons in the interferometer, for both passive (linear) and active (nonlinear) interferometers. The phase uncertainty is independent of applied phase shift for the optimal measurement scheme, and we identify the coefficient of proportionality in each case.

Keywords: Photon Pair; Quantum Measurement Theory; Phase Uncertainty; Fiducial Distribution; Total Photon Number (search for similar items in EconPapers)
Date: 1997
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-1-4615-5923-8_33

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DOI: 10.1007/978-1-4615-5923-8_33

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