71 research outputs found
Geometry and topology of CC and CQ states
We show that multipartite mixed bipartite CC and CQ states are geometrically
and topologically distinguished in the space of states. They are characterized
by non-vanishing Euler-Poincar\'{e} characteristics on the topological side and
by the existence of symplectic structure on the geometric side.Comment: Corrected version, Accepted for publication in JM
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