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Bounding the entanglement of N qubits with only four measurements

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 نشر من قبل Seyed Mohammad Hashemi Rafsanjani
 تاريخ النشر 2013
  مجال البحث فيزياء
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We introduce a new measure for the genuinely N-partite (all-party) entanglement of N-qubit states using the trace distance metric, and find an algebraic formula for the GHZ-diagonal states. We then use this formula to show how the all-party entanglement of experimentally produced GHZ states of an arbitrary number of qubits may be bounded with only four measurements.



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