Prof Jonathan Jones: Publications

Suppressing weak Ising couplings: tailored gates for quantum computation

PHYSICS LETTERS A 316:1-2 (2003) 24-28

Robust Ising Gates for Practical Quantum Computation

(2002)

Tackling Systematic Errors in Quantum Logic Gates with Composite Rotations

(2002)

Authors:

HK Cummins, G Llewellyn, JA Jones

Approximate quantum cloning with nuclear magnetic resonance.

Phys Rev Lett 88:18 (2002) 187901

Authors:

Holly K Cummins, Claire Jones, Alistair Furze, Nicholas F Soffe, Michele Mosca, Josephine M Peach, Jonathan A Jones

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.

Quantum computer get real

Physics World IOP Publishing 15:4 (2002) 21-22

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