Journal article

Experimental demonstration of an efficient quantum phase-covariant cloning and its possible applications to simulating eavesdropping in quantum cryptography

Abstract:: We describe a nuclear magnetic resonance (NMR) experiment which implements an efficient one-to-two qubit phase-covariant cloning machine(QPCCM). In the experiment we have achieved remarkably high fidelities of cloning, 0.848 and 0.844 respectively for the original and the blank qubit. This experimental value is close to the optimal theoretical value of 0.854. We have also demonstrated how to use our phase-covariant cloning machine for quantum simulations of bit by bit eavesdropping in the four-state quantum key distribution protocol.

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APA Style

Du, J., Durt, T., Zou, P., Kwek, L., Lai, C., Oh, C., & Ekert, A. (2003). Experimental demonstration of an efficient quantum phase-covariant cloning and its possible applications to simulating eavesdropping in quantum cryptography.

MLA Style

Du, J., et al. Experimental Demonstration of an Efficient Quantum Phase-Covariant Cloning and Its Possible Applications to Simulating Eavesdropping in Quantum Cryptography. 2003.

Chicago Style

Du, J, T Durt, P Zou, L Kwek, C Lai, C Oh, and A Ekert. 2003. “Experimental Demonstration of an Efficient Quantum Phase-Covariant Cloning and Its Possible Applications to Simulating Eavesdropping in Quantum Cryptography.”
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+ Du, J More by this author

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+ Durt, T More by this author

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+ Zou, P More by this author

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+ Kwek, L More by this author

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+ Lai, C More by this author

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Publication date:: 2003-11-04

Keywords:: quant-ph
Pubs id:: pubs:313212
UUID:: uuid:98732501-e3ae-4390-bc5b-af2bd995fca9
Local pid:: pubs:313212
Source identifiers:: 313212
Deposit date:: 2012-12-19

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Copyright date:: 2003
Notes:: 4 pages, 5 figures

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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