General pure multipartite entangled states and the Segre variety

Details General pure multipartite entangled states and the Segre variety General pure multipartite entangled states and the Segre variety

2006-03-15

arxiv.org/abs/quant-ph/0603127v1

J. Phys. A: Math. Gen. 39 (2006) 9839-9844

Physics

Quantum Physics

5 pages

Scientific paper

10.1088/0305-4470/39/31/013

In this paper, we construct a measure of entanglement by generalizing the
quadric polynomial of the Segre variety for general multipartite states. We
give explicit expressions for general pure three-partite and four-partite
states. Moreover, we will discuss and compare this measure of entanglement with
the generalized concurrence.

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