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MiS Preprint

Concurrence-Based Entanglement Measure for Werner States

Kai Chen, Sergio Albeverio and Shao-Ming Fei


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.

Oct 13, 2006
Oct 13, 2006
Entanglement Measure, Werner states, Concurrence, Tangle

Related publications

2007 Repository Open Access
Kai Chen, Sergio Albeverio and Shao-Ming Fei

Concurrence-based entanglement measure for Werner states

In: Reports on mathematical physics, 58 (2007) 3, pp. 449-458