Husimi coordinates of multipartite separable states

Details Husimi coordinates of multipartite separable states Husimi coordinates of multipartite separable states

2010-04-25

arxiv.org/abs/1004.4370v1

J. Phys. A: Math. Theor. 43 505304 (2010)

Physics

Quantum Physics

19 pages, 1 figure, LaTeX

Scientific paper

A parametrization of multipartite separable states in a finite-dimensional Hilbert space is suggested. It is proved to be a diffeomorphism between the set of zero-trace operators and the interior of the set of separable density operators. The result is applicable to any tensor product decomposition of the state space. An analytical criterion for separability of density operators is established in terms of the boundedness of a sequence of operators.

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