On Local Unitary Equivalence of Two and Three-qubit States

Abstract We study the local unitary equivalence for two and three-qubit mixed states by investigating the invariants under local unitary transformations. For two-qubit system, we prove that the determination of the local unitary equivalence of 2-qubits states only needs 14 or less invariants for arb...

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Bibliographic Details
Main Authors: Bao-Zhi Sun, Shao-Ming Fei, Zhi-Xi Wang
Format: Article
Language:English
Published: Nature Publishing Group 2017-07-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-017-04717-2