Quantify entanglement by concurrence hierarchy

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Fan, Heng; Matsumoto, Keiji; Imai, Hiroshi;

We define the concurrence hierarchy as d-1 independent invariants under local unitary transformations in d-level quantum system. The first one is the original concurrence defined by Wootters et al in 2-level quantum system and generalized to d-level pure quantum states ... View more
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