Physics – Quantum Physics
Scientific paper
2007-04-25
Phys. Rev. A 76, 034304 (2007)
Physics
Quantum Physics
4 pages, 2 figures
Scientific paper
10.1103/PhysRevA.76.034304
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.
Leinaas Jon Magne
Myrheim Jan
Ovrum Eirik
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