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Nonclassicality Invariant of General Two-Mode Gaussian States

We introduce a new quantity for describing nonclassicality of an arbitrary optical two-mode Gaussian state which remains invariant under any global photon-number preserving unitary transformation of the covariance matrix of the state. The invariant naturally splits into an entanglement monotone and...

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Bibliographic Details
Published in:Sci Rep
Main Authors: Arkhipov, Ievgen I., Peřina Jr., Jan, Svozilík, Jiří, Miranowicz, Adam
Format: Artigo
Language:Inglês
Published: Nature Publishing Group 2016
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Online Access:https://ncbi.nlm.nih.gov/pmc/articles/PMC4876421/
https://ncbi.nlm.nih.gov/pubmed/27210547
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/srep26523
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