Please use this identifier to cite or link to this item: https://doi.org/10.1142/S0219749906002407
Title: Alternative derivation of the criterion for economical realization of one-to-two qubit cloning
Authors: Durt, T.
Du, J. 
Daghay, S.
Keywords: Economic cloning
Optimal quantum cloning machine
Quantum cryptography
Issue Date: Dec-2006
Source: Durt, T., Du, J., Daghay, S. (2006-12). Alternative derivation of the criterion for economical realization of one-to-two qubit cloning. International Journal of Quantum Information 4 (6) : 1049-1069. ScholarBank@NUS Repository. https://doi.org/10.1142/S0219749906002407
Abstract: In a previous paper [Phys. Rev. A 69 (2004) 062316], two of us (JD and TD) derived a necessary and sufficient condition for the reducibility of 3 qubit one-to-two cloners to 2 qudit one-to-two cloners. When this criterion is fulfilled, economical cloning is possible. We show in the present paper how to generalize the assumptions under which this condition is valid. We also extend this result to qudit one-to-two cloners, with d finite but arbitrary. © 2006 World Scientific Publishing Company.
Source Title: International Journal of Quantum Information
URI: http://scholarbank.nus.edu.sg/handle/10635/95746
ISSN: 02197499
DOI: 10.1142/S0219749906002407
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