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    Error-prevention scheme with two pairs of qubits

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    ChuShih-I_9-4-2002.pdf (63.95Kb)
    Issue Date
    2002-09-04
    Author
    Chu, Shih-I
    Yang, Chui-Ping
    Han, Siyuan
    Publisher
    American Physical Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
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    Abstract
    A scheme is presented for protecting one-qubit quantum information against decoherence due to a general environment and local exchange interactions. The scheme operates essentially by distributing information over two pairs of qubits and through error-prevention procedures. In the scheme, quantum information is encoded through a decoherence-free subspace for collective phase errors and exchange errors affecting the qubits in pairs; leakage out of the encoding space due to amplitude damping is reduced by quantum Zeno effect. In addition, how to construct decoherence-free states for n-qubit information against phase and exchange errors is discussed.
    Description
    This is the published version, also available here: http://dx.doi.org/10.1103/PhysRevA.66.034301.
    URI
    http://hdl.handle.net/1808/15995
    DOI
    https://doi.org/10.1103/PhysRevA.66.034301
    Collections
    • Chemistry Scholarly Works [610]
    Citation
    Yang, Chui-Ping., Chu, Shih-I., Han, Siyuan. "Error-prevention scheme with two pairs of qubits." Phys. Rev. A 66, 034301 – Published 4 September 2002. http://dx.doi.org/10.1103/PhysRevA.66.034301.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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