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Type: Artigo de periódico
Title: P-representable subset of all bipartite Gaussian separable states
Author: de Oliveira, MC
Abstract: P-representability is a necessary and sufficient condition for separability of bipartite Gaussian states only for the special subset of states whose covariance matrix are Sp(2,R)circle timesSp(2,R) locally invariant. Although this special class of states can be reached by a convenient Sp(2,R)circle timesSp(2,R) transformation over an arbitrary covariance matrix, it represents a loss of generality, avoiding inference of many general aspects of separability of bipartite Gaussian states.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.70.034303
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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