Concurrence-based entanglement measure for Werner States

Details Concurrence-based entanglement measure for Werner States Concurrence-based entanglement measure for Werner States

2007-02-02

arxiv.org/abs/quant-ph/0702017v1

Rep. Math. Phys. 58, 325-334 (2006)

Physics

Quantum Physics

5 pages, no figure

Scientific paper

We give explicit expressions for entanglement measures of Werner states in arbitrary dimensions in terms of concurrence and tangle. We show that an optimal ensemble decomposition for a joint density matrix of a Werner state can achieve the minimum average concurrence and tangle simultaneously. Furthermore, the same decomposition also attains entanglement of formation for Werner states.

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