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arxiv: 1312.6640 · v2 · pith:MFSESJK6new · submitted 2013-12-23 · 🪐 quant-ph

Do Large Number of Parties Enforce Monogamy in All Quantum Correlations?

classification 🪐 quant-ph
keywords quantummonogamynumberstatescorrelationpurecorrelationslarge
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Monogamy is a non-classical property that restricts the sharability of quantum correlation among the constituents of a multipartite quantum system. Quantum correlations may satisfy or violate monogamy for quantum states. Here we provide evidence that almost all pure quantum states of systems consisting of a large number of subsystems are monogamous with respect to all quantum correlation measures of both the entanglement-separability and the information-theoretic paradigms, indicating that the volume of the monogamous pure quantum states increases with an increasing number of parties. Nonetheless, we identify important classes of pure states that remain non-monogamous with respect to quantum discord and quantum work-deficit, irrespective of the number of qubits. We find conditions for which a given quantum correlation measure satisfies vis-\`a-vis violates monogamy.

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