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Experimental quantum cloning with prior partial information.

Abstract:
When prior partial information about a state to be cloned is available, it can be cloned with a fidelity higher than that of universal quantum cloning. We experimentally verify this intriguing relationship between the cloning fidelity and the prior information by reporting the first experimental optimal quantum state-dependent cloner, using nuclear magnetic resonance techniques. Our experiments may further cast important implications into many quantum information processing protocols.
Publication status:
Published

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Journal:
Physical review letters
Volume:
94
Issue:
4
Pages:
040505
Publication date:
2005-02-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:a4f97d0a-2854-4d5f-baa7-d5524be3c807
Source identifiers:
154663
Local pid:
pubs:154663
Language:
English
Keywords:

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