A Note on Equivalence of Bipartite States under Local Unitary Transformations

Bao-Zhi Sun, Shao-Ming Fei, Xianqing Li‐Jost, Zhi‐Xi Wang, Bao-Zhi Suna, Shao-ming Feia, Xianqing Li-jostb, Zhi-xi Wanga

Published Jan 1, 2005• 12 citations

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Abstract

The equivalence of arbitrary dimensional bipartite states under local unitary transformations (LUT) is studied. A set of invariants and an-cillary invariants under LUT is presented. We show that two states are equivalent under LUT if and only if they have the same values for all of these invariants.

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