Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/64881
Type: Artigo de periódico
Title: Entanglement Irreversibility from Quantum Discord and Quantum Deficit
Author: Cornelio, MF
de Oliveira, MC
Fanchini, FF
Abstract: We relate the problem of irreversibility of entanglement with the recently defined measures of quantum correlation-quantum discord and one-way quantum deficit. We show that the entanglement of formation is always strictly larger than the coherent information and the entanglement cost is also larger in most cases. We prove irreversibility of entanglement under local operations and classical communication for a family of entangled states. This family is a generalization of the maximally correlated states for which we also give an analytic expression for the distillable entanglement, the relative entropy of entanglement, the distillable secret key, and the quantum discord.
Country: EUA
Editor: Amer Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.107.020502
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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