Improving control and coherence of the 0-π qubit

ORAL

Abstract

Despite the great success of the transmon qubit, progress in the coherence times of this qubit has slowed in recent years. Moreover, research within a given qubit design often leads to incremental improvements, while new qubit proposals have the potential to advance the state-of-the-art on performance metrics more substantially. An example of such a proposal is the recently introduced 0-π qubit [1]. We have already shown that the noise resilience of this device can be superior to that of the transmon [2]. In this talk, we characterize control strategies for the 0-π qubit and present a new way to enhance its coherence, taking into consideration disorder in system parameters.
[1] Brooks et al., Phys. Rev. A 87, 52306 (2013).
[2] Groszkowski et al., arXiv:1708.02886 [quant-ph] (2017).

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Presenters

  • Agustín Di Paolo

    • Institut quantique and Department de Physique, Universite de Sherbrooke

Authors

  • Agustín Di Paolo

    • Institut quantique and Department de Physique, Universite de Sherbrooke

  • Peter Groszkowski

    • Department of Physics and Astronomy, Northwestern University

  • Arne Grimsmo

    • Centre for Engineered Quantum Systems, School of Physics, The University of Sydney
    • University of Sydney
    • School of Physics, The University of Sydney

  • Andras Gyenis

    • Department of Electrical Engineering, Princeton University
    • Princeton University, Department of Electrical Engineering
    • Princeton University
    • Electrical Engineering, Princeton University

  • Andrew Houck

    • Electrical Engineering, Princeton University
    • Princeton University
    • Department of Electrical Engineering, Princeton University
    • Princeton University, Department of Electrical Engineering

  • Jens Koch

    • Northwestern Univeristy
    • Department of Physics and Astronomy, Northwestern University
    • Department of Physics and Astronomy, Northwestern Univ
    • Department of Physics & Astronomy, Northwestern University
    • Northwestern University
    • Physics, Northwestern University

  • Alexandre Blais

    • Institut quantique and Departement de Physique, Universite de Sherbrooke
    • Physique, Institut Quantique
    • University of Sherbrooke
    • Institut quantique and Department de Physique, Universite de Sherbrooke
    • Physique, Universite de Sherbrooke
    • Physics, University of Sherbrooke
    • Institut quantique and Départment de Physique, Université de Sherbrooke
    • Institut Quantique and Département de Physique, Université de Sherbrooke
    • Univ of Sherbrooke
    • Institut Quantique and Département de Physique, Université de Sherbooke
    • Institut quantique and Département de Physique, Université de Sherbrooke
    • Department of Physics, University of Sherbrooke