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    Rapid optimization of working parameters of microwave-driven multilevel qubits for minimal gate leakage

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    Issue Date
    2005-09-16
    Author
    Zhou, Zhongyuan
    Han, Siyuan
    Chu, Shih-I
    Publisher
    AMERICAN PHYSICAL SOC
    Type
    Article
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    Abstract
    We propose an effective method to optimize the working parameters (WPs) of microwave-driven quantum gates implemented with multilevel qubits. We show that by treating transitions between each pair of levels independently, intrinsic gate errors due primarily to population leakage to undesired states can be determined by spectroscopic properties of the qubits and minimized by choosing proper WPs. The validity and efficiency of the approach are demonstrated by applying it to optimize the WPs of two coupled rf SQUID flux qubits for controlled- NOT operation. The result of this independent transition approximation ( ITA) is in good agreement with that of dynamic method (DM). The ratio of the speed of ITA to that of DM scales exponentially as 2(n) when the number of qubits n increases.
    URI
    http://hdl.handle.net/1808/1725
    DOI
    https://doi.org/10.1103/PhysRevLett.95.120501
    Collections
    • Chemistry Scholarly Works [586]
    • Physics and Astronomy Scholarly Works [1651]
    • Distinguished Professors Scholarly Works [918]
    Citation
    Zhou, ZY; Chu, SI; Han, SY. Rapid optimization of working parameters of microwave-driven multilevel qubits for minimal gate leakage. PHYSICAL REVIEW LETTERS. SEP 16 2005. 95(12).

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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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