Globally optimal interferometry with lossy twin Fock probes

Globally optimal interferometry with lossy twin Fock probes

Parity or quadratic spin (e.g., Jz2) readouts of a Mach–Zehnder (MZ) interferometer probed with a twin Fock (TF) input state allow saturating the optimal sensitivity attainable among all mode-separable states with a fixed total number of particles but only when the interferometer phase θ is near zer...

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Bibliographic Details
Main Authors: T. J. Volkoff, Changhyun Ryu
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-03-01
Series:Frontiers in Physics
Subjects:
quantum metrology
atom interferometry
gradiometry
non-Gaussian states
quantum Cramér–Rao inequality
Online Access:https://www.frontiersin.org/articles/10.3389/fphy.2024.1369786/full

Internet

https://www.frontiersin.org/articles/10.3389/fphy.2024.1369786/full

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