Toward an understanding of entanglement for generalized n-qubit W-states

Details Toward an understanding of entanglement for generalized n-qubit W-states Toward an understanding of entanglement for generalized n-qubit W-states

2008-06-09

arxiv.org/abs/0806.1314v3

J. Phys. A: Math. Theor. 42 (2009) 475303

Physics

Quantum Physics

V1:10 pages, 3 figures V2: 14 pages, one more section is added for the computation of the maximal overlap probability for the

Scientific paper

We 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.

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