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Strong monogamy conjecture for multiqubit entanglement: The four-qubit case

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arxiv 1405.3989 v3 pith:T5PT7EXS submitted 2014-05-15 quant-ph cond-mat.stat-mechmath-phmath.MP

Bartosz Regula , Sara Di Martino , Soojoon Lee , Gerardo Adesso This is my paper · ORCID
classification quant-phcond-mat.stat-mechmath-phmath.MP
keywords monogamystatesentanglementinequalitiesmultiqubitstronganalyticalarbitrary
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We investigate the distribution of bipartite and multipartite entanglement in multiqubit states. In particular we define a set of monogamy inequalities sharpening the conventional Coffman-Kundu-Wootters constraints, and we provide analytical proofs of their validity for relevant classes of states. We present extensive numerical evidence validating the conjectured strong monogamy inequalities for arbitrary pure states of four qubits.

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