Non-Gaussian Noise Spectroscopy with a Superconducting Qubit

ORAL

Abstract

Most quantum control and quantum error-correction protocols assume that the noise causing decoherence is described by Gaussian statistics. However, the Gaussianity assumption breaks down when a qubit is strongly coupled to a sparse environment or has a non-linear response to environmental degrees of freedom. Here, we experimentally validate an open-loop quantum control protocol that reconstructs the higher-order spectrum of injected non-Gaussian phase noise using a superconducting qubit as a noise spectrometer. This first experimental demonstration of non-Gaussian-noise spectroscopy represents a major step toward the goal of demonstrating a complete noise spectral characterization of quantum devices.

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Presenters

  • Youngkyu Sung

    Research Laboratory of Electronics, Massachusetts Institute of Technology, Massachusetts Institute of Technology

Authors

  • Youngkyu Sung

    Research Laboratory of Electronics, Massachusetts Institute of Technology, Massachusetts Institute of Technology

  • Felix Beaudoin

    Department of Physics and Astronomy, Dartmouth College, Dartmouth College

  • Leigh Norris

    Department of Physics and Astronomy, Dartmouth College, Dartmouth College

  • Fei Yan

    Research Laboratory of Electronics, Massachusetts Institute of Technology, Research Laboratory of Electronics, Massachusetts Institute of Technology, USA

  • David K Kim

    MIT Lincoln Lab, Lincoln Laboratory, Massachusetts Institute of Technology, MIT Lincoln Laboratory, Massachusetts Institute of Technology, Massachusetts Institute of Technology Lincoln Laboratory, Lincoln Lab, Massachusetts Institute of Technology, USA, MIT Lincoln Laboratory, Massachusetts Institute of Technology

  • Jack Yanjie Qiu

    Massachusetts Institute of Technology, Research Laboratory of Electronics, Massachusetts Institute of Technology

  • Uwe Von Luepke

    Research Laboratory of Electronics, Massachusetts Institute of Technology

  • Jonilyn L Yoder

    MIT Lincoln Lab, Lincoln Laboratory, Massachusetts Institute of Technology, MIT Lincoln Laboratory, Massachusetts Institute of Technology, Massachusetts Institute of Technology Lincoln Laboratory, Lincoln Lab, Massachusetts Institute of Technology, USA, MIT Lincoln Laboratory, 244 Wood Street, Lexington, MA 02421, MIT Lincoln Laboratory, Massachusetts Institute of Technology

  • Terry Philip Orlando

    Massachusetts Institute of Technology, Electrical Engineering and Computer Science, Research Laboratory of Electronics, Massachusetts Institute of Technology, Research Laboratory of Electronics, Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Research Laboratory of Electronics, Massachusetts Institute of Technology, Research Laboratory of Electronics, Dept. of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, USA, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139

  • Lorenza Viola

    Department of Physics and Astronomy, Dartmouth College, Dartmouth College

  • Simon Gustavsson

    Research Laboratory of Electronics, Massachusetts Institute of Technology, Massachusetts Institute of Technology, Research Laboratory of Electronics, Massachusetts Institute of Technology, USA, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, Research Laboratory of Electronics, MIT

  • William D Oliver

    Research Laboratory of Electronics, Massachusetts Institute of Technology, Department of Physics, Research Laboratory of Electronics, Lincoln Laboratory, Massachusetts Institute of Technology, MIT Lincoln Lab, MIT Lincoln Laboratory, Department of Physics, Massachusetts Institute of Technology, MIT Lincoln Laboratory, Massachusetts Institute of Technology, Research Laboratory of Electronics, Physics, Lincoln Laboratory, Massachusetts Institute of Technology, Department of Physics, Massachusetts Institute of Technology, Research Laboratory of Electronics, Massachusetts Institute of Technology, MIT Lincoln Laboratory, Physics, Massachusetts Institute of Technology, Dept. of Physics, Research Laboratory of Electronics, and Lincoln Lab, Massachusetts Institute of Technology, USA, Research Laboratory of Electronics, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, MIT Lincoln Laboratory, 244 Wood Street, Lexington, MA, Massachusetts Institute of Technology and MIT Lincoln Laboratory, Research Laboratory of Electronics, MIT Lincoln Laboratory, Department of Physics, Massachusetts Institute of Technology, Department of Physics, Research Laboratory of Electronics, MIT Lincoln Laboratory, Massachusetts Institute of Technology, Department of Physics, MIT; Research Laboratory of Electronics, MIT; MIT Lincoln Laboratory