On maximal entanglement between two pairs in four-qubit pure states

S. Brierley, A. Higuchi

Research output: Contribution to journalArticlepeer-review

Abstract

We show that the state with the highest known average two-particle von Neumann entanglement entropy proposed by Sudbery and one of the authors gives a local maximum of this entropy. We also show that this is not the case for an alternative highly entangled state proposed by Brown et al.

Original languageEnglish
Pages (from-to)8455-8465
Number of pages11
JournalJournal of Physics A: Mathematical and Theoretical
Volume40
Issue number29
DOIs
Publication statusPublished - 20 Jul 2007

Keywords

  • SEPARABILITY

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