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Experimental realization of a quantum algorithm

Author

Listed:
  • Isaac L. Chuang

    (IBM Almaden Research Center)

  • Lieven M. K. Vandersypen

    (Solid State and Photonics Laboratory, Stanford University)

  • Xinlan Zhou

    (Solid State and Photonics Laboratory, Stanford University)

  • Debbie W. Leung

    (Edward L. Ginzton Laboratory, Stanford University)

  • Seth Lloyd

    (MIT Department of Mechanical Engineering)

Abstract

Quantum computers1,2,3,4,5 can in principle exploit quantum-mechanical effects to perform computations (such as factoring large numbers or searching an unsorted database) more rapidly than classical computers1,2,6,7,8. But noise, loss of coherence, and manufacturing problems make constructing large-scale quantum computers difficult9,10,11,12,13. Although ion traps and optical cavities offer promising experimental approaches14,15, no quantum algorithm has yet been implemented with these systems. Here we report the experimental realization of a quantum algorithm using a bulk nuclear magnetic resonance technique16,17,18, in which the nuclear spins act as ‘quantum bits’19. The nuclear spins are particularly suited to this role because of their natural isolation from the environment. Our simple quantum computer solves a purely mathematical problem in fewer steps than is possible classically, requiring fewer ‘function calls’ than a classical computer to determine the global properties of an unknown function.

Suggested Citation

  • Isaac L. Chuang & Lieven M. K. Vandersypen & Xinlan Zhou & Debbie W. Leung & Seth Lloyd, 1998. "Experimental realization of a quantum algorithm," Nature, Nature, vol. 393(6681), pages 143-146, May.
    • Handle: RePEc:nat:nature:v:393:y:1998:i:6681:d:10.1038_30181
    DOI: 10.1038/30181
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    Cited by:

    1. Edmund J. Little & Jacob Mrozek & Ciarán J. Rogers & Junjie Liu & Eric J. L. McInnes & Alice M. Bowen & Arzhang Ardavan & Richard E. P. Winpenny, 2023. "Experimental realisation of multi-qubit gates using electron paramagnetic resonance," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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