Entanglement and extreme spin squeezing of unpolarized states

We present criteria to detect the depth of entanglement in macroscopic ensembles of spin- j particles using the variance and second moments of the collective spin components. The class of states detected goes beyond traditional spin-squeezed states by including Dicke states and other unpolarized sta...

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Bibliographic Details
Published in:New Journal of Physics
Main Authors: Giuseppe Vitagliano, Iagoba Apellaniz, Matthias Kleinmann, Bernd Lücke, Carsten Klempt, Géza Tóth
Format: Article
Language:English
Published: IOP Publishing 2017-01-01
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/19/1/013027