Optimal Gaussian metrology for generic multimode interferometric circuit
Abstract
Bounds on the ultimate precision attainable in the estimation of a parameter in Gaussian quantum metrology are obtained when the average number of bosonic probes is fixed. We identify the optimal input probe state among generic (mixed in general) Gaussian states with a fixed average number of probe photons for the estimation of a parameter contained in a generic multimode interferometric optical circuit, namely, a passive linear circuit...
Paper Details
Title
Optimal Gaussian metrology for generic multimode interferometric circuit
Published Date
Mar 19, 2019
Journal
Volume
21
Issue
3
Pages
033014 - 033014
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