Squeezing in Longitudinal Readout of a Kerr-cat Qubit

Oral-In-person  · Withdrawn

Abstract

The Kerr cat qubit is a promising qubit design with high bit-flip lifetimes. However, current readout methods for the quantum state of a Kerr cat qubit are slow due to the time required for the qubit to reach a steady state with high fidelity. Therefore, a method to achieve high fidelities in a short amount of time is desired. In this work, we incorporate squeezing to enhance longitudinal readout in Kerr cat qubits. We show the effects of squeezing on the readout Signal-to-Noise Ratio (SNR) and readout speed on the Kerr cat qubit.

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Presenters

  • Irwin Huang

    • University of Rochester

Authors

  • Irwin Huang

    • University of Rochester

  • KAGAN YANIK

    • University of Rochester/Chapman University

  • Bibek Bhandari

    • Chapman University

  • AHMED HAJR

    • University of California, Berkeley

  • Bingcheng Qing

    • University of California, Berkeley

  • Ke Wang

    • University of California, Berkeley

  • David Santiago

    • Lawrence Berkeley National Laboratory

  • Justin Dressel

    • Chapman University

  • Irfan Siddiqi

    • University of California, Berkeley

  • Andrew Jordan

    • Chapman University