Beyond Single Photon Dissipation in Kerr Cat Qubits

ORAL

Abstract

Kerr cat qubits is a superconducting qubit designed to be resistant against bit-flip errors. However, Kerr cat qubits are still susceptible to a myriad of dissipation, leading to lower bit-flip lifetimes. In this talk, we will present some strategies for increasing the bit-flip lifetime of the Kerr cat qubit beyond two photon driving. These strategies include detuning the driven Kerr cat Hamiltonian, multi-photon cooling, and colored dissipation as a cooling mechanism. We show that two photon and colored cooling was able to increase the bit-flip lifetime, while detuning can improve the bit-flip lifetime while maintaining the phase-flip lifetime.

*Research was sponsored by the Army Research Office and was accomplished under Grant Number W911NF-22-1-0258. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Army Research Office or the U.S. Government

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Presenters

  • Irwin Huang

    • University of Rochester

Authors

  • Irwin Huang

    • University of Rochester

  • Bibek Bhandari

    • Chapman University

  • KAGAN YANIK

    • University of Rochester
    • University of Rochester, Chapman University

  • Bingcheng Qing

    • University of California, Berkeley

  • AHMED HAJR

    • University of California, Berkeley

  • Ke Wang

    • University of California, Berkeley

  • David I Santiago

    • Lawrence Berkeley National Laboratory

  • Justin Dressel

    • Chapman University

  • Irfan Siddiqi

    • University of California, Berkeley

  • Andrew N Jordan

    • Chapman University