Cummins HK, Jones C, Furze A, Soffe NF, Mosca M, Peach JM, Jones JA. Approximate quantum cloning with nuclear magnetic resonance.
PHYSICAL REVIEW LETTERS 2002;
88:187901. [PMID:
12005722 DOI:
10.1103/physrevlett.88.187901]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2001] [Indexed: 05/23/2023]
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.
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