Optimal Gaussian metrology for generic multimode interferometric circuit

Optimal Gaussian metrology for generic multimode interferometric circuit

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...

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Bibliographic Details
Main Authors: Teruo Matsubara, Paolo Facchi, Vittorio Giovannetti, Kazuya Yuasa
Format: Article
Language:English
Published: IOP Publishing 2019-01-01
Series:New Journal of Physics
Subjects:
quantum metrology
quantum estimation
quantum Fisher information
Gaussian states
squeezed states
optical circuits
Online Access:https://doi.org/10.1088/1367-2630/ab0604

Internet

https://doi.org/10.1088/1367-2630/ab0604

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