Decoherence in dynamically protected qubits

ORAL

Abstract

I will present on the decoherence properties of two different yet similar superconducting qubit designs, namely Floquet and Kerr-cat qubits. The two-qubit designs rely on the periodic driving of a non-linear resonator and are celebrated for protection against decoherence through dynamical decoupling. However, their operation and decoherence properties have, in large part, been studied separately. In this presentation, I will discuss the similarities and differences in the decoherence properties as well as the operation of these two-qubit designs.

*We acknowledge the support of the U.S. Army Research Office under grant W911NF-22-1-0258.

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Publication: 1. L. B. Nguyen, Y. Kim, N. Goss, B. Marinelli, B. Bhandari, et al., Nature Physics, 1-7 (2024)
2. A. Hajr, B. Qing, K. Wang, G. Koolstra, Z. Pedramrazi, Z. Kang, L. Chen, L. B. Nguyen, C. Junger, N. Goss, I. Huang, B. Bhandari, et al., arXiv:2404.16697 (2024) (PRX accepted)
3. B. Bhandari, et al, arXiv:2405.11375 (2024)

Presenters

  • Bibek Bhandari

    • Chapman University

Authors

  • Bibek Bhandari

    • Chapman University

  • D. Dominic Dominic Briseño-Colunga

    • Chapman University

  • Irwin Huang

    • University of Rochester

  • AHMED HAJR

    • University of California, Berkeley

  • Long Bao Nguyen

    • University of California, Berkeley

  • Bingcheng Qing

    • University of California, Berkeley

  • Ke Wang

    • University of California, Berkeley

  • David I Santiago

    • Lawrence Berkeley National Laboratory

  • Irfan Siddiqi

    • University of California, Berkeley

  • Justin Dressel

    • Chapman University

  • Andrew N Jordan

    • Chapman University