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Invariants for a Class of Nongeneric Three-qubit States

Bao-Zhi Sun·Shao-Ming Fei
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Abstract

We investigate the equivalence of quantum states under local unitary transformations. A complete set of invariants under local unitary transformations is presented for a class of non-generic three-qubit mixed states. It is shown that two such states in this class are locally equivalent if and only if all these invariants have equal values for them.

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Bao-Zhi Sun, Shao-Ming Fei. 2006-06-19. Invariants for a Class of Nongeneric Three-qubit States. https://doi.org/10.1088/0253-6102%2F45%2F6%2F010

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