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Shao-Ming Fei

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Preprint Sep 2026

Characterizing local unitary equivalence of multipartite states by local unitary Bargmann invariants

Local unitary (LU) equivalent states are crucial for understanding the structure of quantum entanglement. We investigate the LU equivalence based on the LU Bargmann invariants (LUBIs). We consider for which states the LUBIs are sufficient to ensure the LU equivalence. We focus on a class of multipartite states with com...

Yi Shen, Lin Chen, Shao-Ming Fei · 0 citations