Concurrence of quasi pure quantum states

Details Concurrence of quasi pure quantum states Concurrence of quasi pure quantum states

2004-11-18

arxiv.org/abs/quant-ph/0411130v1

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.72.012336

We derive an analytic approximation for the concurrence of weakly mixed
bipartite quantum states - typical objects in state of the art experiments.
This approximation is shown to be a lower bound of the concurrence of arbitrary
states.

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