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Concurrence classes for general pure multipartite states

Hoshang Heydari
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Abstract

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, $GHZ^{m}$, and $GHZ^{m-1}$ class concurrences for general pure $m$-partite states. We give explicit expressions for $W^{3}$ and $GHZ^{3}$ class concurrences for general pure three-partite states and for $W^{4}$, $GHZ^{4}$, and $GHZ^{3}$ class concurrences for general pure four-partite states.

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Hoshang Heydari. 2005-12-01. Concurrence classes for general pure multipartite states. https://doi.org/10.1088/0305-4470/38/40/012

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