No signalling and probabilistic quantum cloning
โ Scribed by Lucien Hardy; David D Song
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 32 KB
- Volume
- 259
- Category
- Article
- ISSN
- 0375-9601
No coin nor oath required. For personal study only.
โฆ Synopsis
We show that the condition of no faster-than-light signalling restricts the number of quantum states that can be cloned in ลฝ . a given Hilbert space. This condition leads to the constraints on a probabilistic quantum cloning machine PQCM recently found by Duan and Guo.
๐ SIMILAR VOLUMES
It is shown that the no signaling constraint generates the whole class of 1 โข 2 optimal quantum cloning machines of single qubits
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