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