Nonlinear quantum optics for the characterization of Majorana qubits

ORAL

Abstract

Recent developments in the design of Majorana qubits have focused on devices with significant charging energy. In this parameter regime, methods from circuit QED can be used to study topological qubits. In particular, the toolbox of quantum optics opens new possible schemes for the characterization, measurement, and control of Majorana qubits. As a step in this direction, we investigate how the phenomenon of bifurcation in nonlinear cavities, commonly used for measuring qubits, is altered in the presence of Majorana bound states. Our preliminary results indicate that bifurcation could help characterize quasiparticle poisoning events in quantum wires-based Majorana qubits.

*This research has been funded by the Natural Sciences and Engineering Research Council of Canada, the Fonds de Recherche du Québec - Nature et Technologies, and Canada's First Research Excellence Fund.

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Presenters

  • Samuel Boutin

    • Institut quantique, Université de Sherbrooke
    • Institut quantique and Département de Physique, Université de Sherbrooke

Authors

  • Samuel Boutin

    • Institut quantique, Université de Sherbrooke
    • Institut quantique and Département de Physique, Université de Sherbrooke

  • Anqi Mu

    • Department of Physics, University of Toronto

  • Pedro Lopes

    • Physics, University of British Columbia
    • Stewart Blusson Quantum Matter Institute, University of British Columbia

  • Udson Mendes

    • Univ. of Sherbrooke
    • Institut quantique and Département de Physique, Université de Sherbrooke

  • Ion Garate

    • Universite de Sherbrooke
    • Institut quantique, Université de Sherbrooke
    • Institut quantique and Département de Physique, Université de Sherbrooke