# OPTIMAL CLONING OF PURE STATES

@article{Werner1998OPTIMALCO,
title={OPTIMAL CLONING OF PURE STATES},
author={Reinhard F. Werner},
journal={Physical Review A},
year={1998},
volume={58},
pages={1827-1832}
}
• R. Werner
• Published 1 April 1998
• Mathematics
• Physical Review A
We construct the unique optimal quantum device for turning a finite number of d-level quantum systems in the same unknown pure state \sigma into M systems of the same kind, in an approximation of the M-fold tensor product of the state \sigma.
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