Probabilistic exact cloning and probabilistic no-signalling
نویسندگان
چکیده
منابع مشابه
Probabilistic exact cloning and probabilistic no-signalling
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 probabilisti...
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متن کاملv 2 1 7 A ug 1 99 9 Probabilistic exact cloning and probabilistic no - signalling
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 probabilisti...
متن کاملNo Signalling and Probabilistic Quantum Cloning
We show that the condition of no faster-than-light signalling restricts the number of quantum states that can be cloned in a given Hilbert space. This condition leads to the constraints on a probabilistic quantum cloning machine (PQCM) recently found by Duan and Guo. 1 E-mail: [email protected] 2 E-mail: [email protected] J.S. Bell showed, in his famous paper [1], the non-local n...
متن کاملua nt - p h / 99 08 01 7 v 1 4 A ug 1 99 9 Probabilistic exact cloning and probabilistic no - signalling
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 probabilisti...
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ژورنال
عنوان ژورنال: Physics Letters A
سال: 2000
ISSN: 0375-9601
DOI: 10.1016/s0375-9601(00)00281-4