Tailoring Multiqubit Measurement Operators Through Dynamic Cavity States (Part 1)

ORAL

Abstract

Recent improvements in resonator coherence times in the field of superconducting qubits have allowed access to a rich new toolbox which takes advantage of their large and long-lived Hilbert space. In this talk, I introduce several techniques utilizing the cavity state and protocols built from these techniques. We condition the evolution of a cavity state via dispersive interactions with multiple qubits, and manipulate the system to implement quantum erasure, selectively reducing the space of the resulting entanglement. This can be tailored to create a spectrum of measurement operators including measurements on a selectable subset of the system. This ability is a prerequisite for most approaches to quantum error correction. The following talk will cover the experimental implementation.

*Work supported by IARPA and ARO

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Authors

  • Jacob Blumoff

    • Departments of Applied Physics and Physics, Yale University
    • Departments of Physics and Applied Physics, Yale University
    • Yale Univ. Depts. of Applied Physics and Physics

  • K. Chou

    • Departments of Physics and Applied Physics, Yale University

  • S. Nigg

    • University of Basel

  • M. Reed

    • HRL

  • B. Vlastakis

    • Departments of Physics and Applied Physics, Yale University

  • R. Heeres

    • Departments of Physics and Applied Physics, Yale University

  • L. Frunzio

    • Departments of Physics and Applied Physics, Yale University

  • S. Girvin

    • Departments of Physics and Applied Physics, Yale University

  • M.H. Devoret

    • Departments of Physics and Applied Physics, Yale University

  • R.J. Schoelkopf

    • Departments of Physics and Applied Physics, Yale University