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When non-Gaussian states are Gaussian: Generalization of nonseparability criterion for continuous variables

Derek McHugh, Vladimír Bužek, and Mário Ziman
Phys. Rev. A 74, 050306(R) – Published 30 November 2006

Abstract

We present a class of non-Gaussian two-mode continuous-variable states for which the separability criterion for Gaussian states can be employed to detect whether they are separable or not. These states reduce to the two-mode Gaussian states as a special case.

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  • Received 2 November 2006

DOI:https://doi.org/10.1103/PhysRevA.74.050306

©2006 American Physical Society

Authors & Affiliations

Derek McHugh1, Vladimír Bužek1,2, and Mário Ziman1,2,3

  • 1Research Center for Quantum Information, Slovak Academy of Sciences, Dúbravská cesta 9, 84511 Bratislava, Slovakia
  • 2Quniverse, Líščie údolie 116, 841 04 Bratislava, Slovakia
  • 3Faculty of Informatics, Masaryk University, Botanická 68a, 60200 Brno, Czech Republic

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Issue

Vol. 74, Iss. 5 — November 2006

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