1. Department of Mathematics, Capital Normal University, Beijing 100037, China
;2. Institut für Angewandte Mathematik, Universität Bonn, D-53115, Bonn, Germany
Abstract:
The equivalence of multipartite quantum mixed states under
local unitary transformations is studied. A criterion for the
equivalence of non-degenerate mixed multipartite quantum states under
local unitary transformations is presented.