Concurrence classes for general pure multipartite states
نویسنده
چکیده
We propose concurrence classes for general pure multipartite states based on an orthogonal complement of a positive operator valued measure on quantum phase. In particular, we construct W m class, GHZ, and GHZ class concurrences for general pure m-partite states. We give explicit expressions for W 3 and GHZ class concurrences for general pure three-partite states and for W , GHZ, and GHZ class concurrences for general pure four-partite states.
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تاریخ انتشار 2005