Extreme points of the set of density matrices with positive partial transpose

Abstract

We present a necessary and sufficient condition for a finite dimensional density matrix to be an extreme point of the convex set of density matrices with positive partial transpose with respect to a subsystem. We also give an algorithm for finding such extreme points and illustrate this by some examples.

4 pages, 2 figures

References in corpus (1)

• A (5,5) and (6,6) PPT edge state

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