title: Approximate quantum cloning with nuclear magnetic resonance.
abstract: Here we describe a nuclear magnetic resonance (NMR) experiment that uses a three qubit NMR device to implement the one-to-two approximate quantum cloning network of Buzek et al. [Phys. Rev. A 56, 3446 (1997)]. As expected the experimental results indicate that the network clones all input states with similar fidelities, but as a result of decoherence and incoherent evolution arising from B(1) inhomogeneity the total fidelity achieved does not exceed the measurement bound.
authors: Centre for Quantum Computation, Clarendon Laboratory, University of Oxford, Parks Road, OX1 3PU, United Kingdom.
authors: Holly K
authors: HK
authors: Cummins
authors: Claire
authors: C
authors: Jones
authors: Alistair
authors: A
authors: Furze
authors: Nicholas F
authors: NF
authors: Soffe
authors: Michele
authors: M
authors: Mosca
authors: Josephine M
authors: JM
authors: Peach
authors: Jonathan A
authors: JA
authors: Jones