Reduction of multipartite qubit density matrixes to bipartite qubit density matrixes and criteria of partial separability of multipartite qubit density matrixes

Details Reduction of multipartite qubit density matrixes to bipartite qubit density matrixes and criteria of partial separability of multipartite qubit density matrixes Reduction of multipartite qubit density matrixes to bipartite qubit density matrixes and criteria of partial separability of multipartite qubit density matrixes

2004-03-24

arxiv.org/abs/quant-ph/0403173v2

Physics

Quantum Physics

5 pages, no figure

Scientific paper

The partial separability of multipartite qubit density matrixes is strictly
defined. We give a reduction way from N-partite qubit density matrixes to
bipartite qubit density matrixes, and prove a necessary condition that a
N-partite qubit density matrix to be partially separable is its reduced density
matrix to satisfy PPT condition.

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