Distillability via protocols respecting the positivity of partial transpose

Details Distillability via protocols respecting the positivity of partial transpose Distillability via protocols respecting the positivity of partial transpose

2001-04-19

arxiv.org/abs/quant-ph/0104095v2

Physics

Quantum Physics

3 pages, REVTeX, remark on complete positivity and reference added

Scientific paper

10.1103/PhysRevLett.87.257902

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.

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