Local symmetry properties of pure 3-qubit states

Abstract

Entanglement types of pure states of 3 qubits are classified by means of their stabilisers in the group of local unitary operations. It is shown that the stabiliser is generically discrete, and that a larger stabiliser indicates a stationary value for some local invariant. We describe all the exceptional states with enlarged stabilisers.

32 pages, 5 encapsulated PostScript files for 3 figures. Published version, with minor corrections

References in corpus (3)

• Exact and Asymptotic Measures of Multipartite Pure State Entanglement
• Limits for entanglement measures
• Continuity bounds for entanglement

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