Levon Tamaryan et al 2009 J. Phys. A: Math. Theor. 42 475303 doi:10.1088/1751-8113/42/47/475303
Levon Tamaryan1, Hungsoo Kim2, Eylee Jung3, Mi-Ra Hwang3, DaeKil Park3 and Sayatnova Tamaryan4
Show affiliationsWe solve stationarity equations of the geometric measure of entanglement for multi-qubit W-type states. In this way we compute analytically the maximal overlap of one-parameter n-qubit and two-parameter four-qubit W-type states and their nearest product states. Possible extensions to arbitrary W-type states and geometrical interpretations of these results are discussed in detail.
03.67.Lx Quantum computation architectures and implementations
81P68 Quantum computation and quantum cryptography (See also 68Q05, 94A60)
Issue 47 (27 November 2009)
Received 10 June 2009, in final form 5 October 2009
Published 4 November 2009
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