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Probabilistic exact cloning and probabilistic no-signalling

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 نشر من قبل Dr. Arun Kumar Pati
 تاريخ النشر 1999
  مجال البحث فيزياء
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 تأليف Arun Kumar Pati




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We show that non-local resources cannot be used for probabilistic signalling even if one can produce exact clones with the help of a probabilistic quantum cloning machine (PQCM). We show that PQCM cannot help to distinguish two statistical mixtures at a remote location. Thus quantum theory rules out the possibility of sending superluminal signals not only deterministically but also probabilistically. We give a bound on the success probability of producing multiple clones in an entangled system.



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