326 citations
- Max Planck SocietyDE129 papers
- Max Planck Institute for Mathematics in the SciencesDE33 papers
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4 papers · 1 filter
Representation Class and Geometrical Invariants of Quantum States under Local Unitary Transformations
Zu-Huan Yu, Xian-Qing Li-Jost, Shao-Ming Fei
We investigate the equivalence of bipartite quantum mixed states under local unitary transformations by introducing representation classes from a geometrical approach. It is shown…
Local Equivalence of Rank-Two Quantum Mixed States
Sergio Albeverio, Shao-Ming Fei, Debashish Goswami
We investigate the equivalence of quantum mixed states under local unitary transformations. For a class of rank-two mixed states, a sufficient and necessary condition of local equi…
Addendum to "Multipartite states under local unitary transformations"
Sergio Albeverio, Laura Cattaneo, Shao-Ming Fei +1
In previous work the authors introduced a notion of generic states and obtained criteria for local equivalence of them. Here they introduce the concept of CHG states maintaining th…
Entanglement conditions for multi-mode states
Zong-Guo Li, Shao-Ming Fei, Zhi-Xi Wang +1
We provide a class of inequalities for detecting entanglements in multi-mode systems. Necessary conditions for fully separable, bi-separable and sufficient conditions for fully ent…