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The distillable entanglement of multiple copies of Bell states
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classification
quant-ph
keywords
copiesbelldistillableentanglementprovidedstatesclassicalcommunication
abstract
It is impossible to discriminate four Bell states through local operations and classical communication (LOCC), if only one copy is provided. To complete this task, two copies will suffice and be necessary. When $n$ copies are provided, we show that the distillable entanglement is exactly $n-2$.
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