Preparing Schrodinger cat states by parametric pumping

ORAL

Abstract

Maintaining a quantum superposition state of light in a cavity has important applications for quantum error correction. We present an experimental protocol based on parametric pumping and Josephson circuits, which could prepare a Schrodinger cat state in a cavity. This is achieved by engineering a dissipative environment, which exchanges only pairs or quadruples of photons with our cavity mode. The dissipative nature of this preparation would lead to the observation of a dynamical Zeno effect, where the competition between a coherent drive and the dissipation reveals non trivial dynamics. Work supported by: IARPA, ARO, and NSF.

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Authors

  • Zaki Leghtas

    Department of Applied Physics, Yale University, Yale Univ. Depts. of Applied Physics and Physics

  • Steven Touzard

    Department of Applied Physics, Yale University

  • Ioan Pop

    Department of Applied Physics, Yale University

  • Brian Vlastakis

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

  • Evan Zalys-Geller

    Department of Applied Physics, Yale University

  • Victor V. Albert

    Department of Applied Physics, Yale University

  • Liang Jiang

    Department of Applied Physics, Yale University, Yale University

  • Luigi Frunzio

    Departments of Applied Physics and Physics, Yale University, Department of Applied Physics, Yale University

  • Robert Schoelkopf

    Departments of Applied Physics and Physics, Yale University, Department of Applied Physics, Yale University, Yale University Departments of Applied Physics and Physics

  • Mazyar Mirrahimi

    INRIA Paris-Rocquencourt

  • Michel Devoret

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