Concurrence via entanglement witnesses

Details Concurrence via entanglement witnesses Concurrence via entanglement witnesses

2006-09-04

arxiv.org/abs/quant-ph/0609024v2

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.75.052302

We derive an experimentally observable lower bound on concurrence of mixed
quantum states in terms of an entanglement witness, relating measurements on
single states with those on two copies.

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