Distillability via protocols respecting the positivity of partial transpose

Preprint

19 April 2001

preprint
Published by arXiv in arXiv

Abstract

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 NPT bound entanglement exist is therefore closely related to the connection between the set of separable superoperators and PPT-preserving maps.

Keywords

BOUND ENTANGLEMENT
DISTILLABILITY
ENTANGLEMENT EXIST
NPT BOUND
PARTIAL TRANSPOSE
POSITIVE PARTIAL
PRESERVING MAPS
PROTOCOLS RESPECTING
RESPECTING THE POSITIVITY
TRANSPOSE

All Related Versions

Version 1, 2001-04-19, ArXiv
Version 2, 2001-05-14, ArXiv
Published version: Physical Review Letters, 87 (25), 257902.

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