2000/01/31 by H A Carteret, A Sudbery · 2 citations
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1088/0305-4470/33/28/303
published as J. Phys. A 33 (2000), 4981-5002 · 32 pages, 5 encapsulated PostScript files for 3 figures. Published version, with minor corrections
arxiv created 2000/07/28 · arxiv updated 2009/12/01
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.