Detecting metrologically useful entanglement in the vicinity of Dicke states

Detecting metrologically useful entanglement in the vicinity of Dicke states

We present a method to verify the metrological usefulness of noisy Dicke states of a particle ensemble with only a few collective measurements, without the need for a direct measurement of the sensitivity. Our method determines the usefulness of the state for the usual protocol for estimating the an...

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Bibliographic Details
Main Authors: Iagoba Apellaniz, Bernd Lücke, Jan Peise, Carsten Klempt, Géza Tóth
Format: Article
Language:English
Published: IOP Publishing 2015-01-01
Series:New Journal of Physics
Subjects:
quantum Fisher information
quantum metrology
quantum entanglement
Dicke states
03.67.Mn
03.65.Ud
Online Access:https://doi.org/10.1088/1367-2630/17/8/083027

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