Distillability via protocols respecting the positivity of partial transpose

Tilo Eggeling, Karl Gerd H. Vollbrecht, Reinhard F. Werner, Michael M. Wolf

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We show that all quantum states that do not have a positive partial transpose are distillable via channels, which preserve the positivity of the partial transpose. The question whether bound entangled states with nonpositive partial transpose exist is therefore closely related to the connection between the set of separable superoperators and positive partial transpose-preserving maps.

Original languageEnglish
Pages (from-to)257902-1-257902-3
JournalPhysical Review Letters
Issue number25
StatePublished - 17 Dec 2001
Externally publishedYes


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