The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting

Path-Symmetric States and Parity Detection in Quantum Optical Interferometry

Kaushik Parasuram Seshadreesan, Sejong Kim, Bhaskar Roy Bardhan, Jonathan P. Dowling, Hwang Lee

Published Jan 1, 2013• 0 citations

Abstract

In optical phase estimation, pure states that achieve maximal phase sensitivities with number counting, are symmetric with respect to a certain exchange of paths. We prove the optimality of photon-number parity detection for such path-symmetric states.

DOI: 10.1364/cqo.2013.m6.36

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