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Type: Artigo de periódico
Title: Minimal set of local measurements and classical communication for two-mode Gaussian state entanglement quantification
Author: Haruna, LF
de Oliveira, MC
Rigolin, G
Abstract: We develop the minimal requirements for the complete entanglement quantification of an arbitrary two-mode bipartite Gaussian state via local measurements and a classical communication channel. The minimal set of measurements is presented as a reconstruction protocol of local covariance matrices and no previous knowledge of the state is required but its Gaussian character. The protocol becomes very simple mostly when dealing with Gaussian states transformed to its standard form, since photocounting or intensity measurements define the whole set of entangled states. In addition, conditional on some prior information, the protocol is also useful for a complete global state reconstruction.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.98.150501
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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