@article{Russ2018Highf-41584,
  year={2018},
  doi={10.1103/PhysRevB.97.085421},
  title={High-fidelity quantum gates in Si/SiGe double quantum dots},
  number={8},
  volume={97},
  issn={2469-9950},
  journal={Physical Review B},
  author={Russ, Maximilian and Zajac, David M. and Sigillito, Anthony J. and Borjans, Felix and Taylor, Jacob M. and Petta, Jason R. and Burkard, Guido},
  note={Article Number: 085421}
}

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    <dc:creator>Borjans, Felix</dc:creator>
    <dcterms:title>High-fidelity quantum gates in Si/SiGe double quantum dots</dcterms:title>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-02-23T14:03:59Z</dc:date>
    <dc:creator>Zajac, David M.</dc:creator>
    <dc:creator>Petta, Jason R.</dc:creator>
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    <dc:creator>Sigillito, Anthony J.</dc:creator>
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    <dc:creator>Burkard, Guido</dc:creator>
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    <dc:contributor>Zajac, David M.</dc:contributor>
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    <dc:contributor>Sigillito, Anthony J.</dc:contributor>
    <dc:contributor>Burkard, Guido</dc:contributor>
    <dc:language>eng</dc:language>
    <dcterms:issued>2018</dcterms:issued>
    <dcterms:abstract xml:lang="eng">Motivated by recent experiments of Zajac et al. [Science 359, 439 (2018)], we theoretically describe high-fidelity two-qubit gates using the exchange interaction between the spins in neighboring quantum dots subject to a magnetic field gradient. We use a combination of analytical calculations and numerical simulations to provide the optimal pulse sequences and parameter settings for the gate operation. We present a synchronization method which avoids detrimental spin flips during the gate operation and provide details about phase mismatches accumulated during the two-qubit gates which occur due to residual exchange interaction, nonadiabatic pulses, and off-resonant driving. By adjusting the gate times, synchronizing the resonant and off-resonant transitions, and compensating these phase mismatches by phase control, the overall gate fidelity can be increased significantly.</dcterms:abstract>
    <dc:creator>Taylor, Jacob M.</dc:creator>
    <dc:creator>Russ, Maximilian</dc:creator>
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