Experimental Quantum Cloning with Prior Partial Information
arXiv:quant-ph/0405094 · doi:10.1103/PhysRevLett.94.040505
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 cloning, using nuclear magnetic resonance techniques. Our experiments may further have important implications into many quantum information processing protocols.
4 pages, 2 figures