Phys. Rev. Lett. 84, 2263–2266 (2000)Information, Relative Entropy of Entanglement, and IrreversibilityReceived 9 September 1999; published in the issue dated 6 March 2000 Previously proposed measures of entanglement, such as entanglement of formation and assistance, are shown to be special cases of the relative entropy of entanglement. The difference between these measures for an ensemble of mixed states is shown to depend on the availability of classical information about particular members of the ensemble. Based on this, relations between relative entropy of entanglement and mutual information are derived. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.2263
DOI:
10.1103/PhysRevLett.84.2263
PACS:
03.67.-a, 03.65.Bz
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