Phys. Rev. A 65, 054303 (2002) [4 pages]Separability of two-party Gaussian statesReceived 26 July 2001; published 7 May 2002 We investigate the separability properties of quantum two-party Gaussian states in the framework of the operator formalism for the density operator. Such states arise as natural generalizations of the entangled state originally introduced by Einstein, Podolsky, and Rosen. We present explicit forms of separable and nonseparable Gaussian states. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.65.054303
DOI:
10.1103/PhysRevA.65.054303
PACS:
03.67.-a, 03.65.Ta, 42.50.Dv, 89.70.+c
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