title: General monogamy inequality for bipartite qubit entanglement.
abstract: We consider multipartite states of qubits and prove that their bipartite quantum entanglement, as quantified by the concurrence, satisfies a monogamy inequality conjectured by Coffman, Kundu, and Wootters. We relate this monogamy inequality to the concept of frustration of correlations in quantum spin systems.
authors.affiliation: Department of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, United Kingdom. T.J.Osbourne@bristol.ac.uk
authors.forename: Tobias J
authors.initials: TJ
authors.lastname: Osborne
authors.forename: Frank
authors.initials: F
authors.lastname: Verstraete