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Two-qubit gates for fluxonium qubits using a tunable coupler.

ORAL

Abstract

Tunable couplers enable the realization of efficient two-qubit gates with a high on/off coupling ratio and reduced crosstalk in a single design. In this work, we theoretically explore designs for fast, high-fidelity two-qubit gates between superconducting fluxonium qubits using an inductive tunable coupler. We use this coupler to realize gates from the f-Sim family using fast-flux control on the coupler and qubits. Additionally, we examine parametric two-qubit gates on this architecture to further improve gate performance. We also examine the effects of fabrication errors, leakage and decoherence in our design.

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Presenters

  • Abhishek Chakraborty

    University of Rochester

Authors

  • Abhishek Chakraborty

    University of Rochester

  • D. Dominic Dominic Briseño-Colunga

    Chapman University

  • Noah J Stevenson

    University of California, Berkeley

  • Bibek Bhandari

    Chapman University

  • Zahra Pedramrazi

    University of California, Berkeley

  • Noah Kurt Goss

    University of California, Berkeley

  • Chuan-Hong Liu

    University of California, Berkeley, Univ of California, Berkeley

  • Andrew N Jordan

    Chapman University

  • Justin Dressel

    Chapman University

  • David I Santiago

    Lawrence Berkeley National Laboratory

  • Irfan Siddiqi

    University of California, Berkeley