Optimal cloning of pure states
- 1 September 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 58 (3) , 1827-1832
- https://doi.org/10.1103/physreva.58.1827
Abstract
We construct a unique optimal quantum device for turning a finite number of -level quantum systems in the same unknown pure state σ into systems of the same kind, in an approximation of the -fold tensor product of the state σ.
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