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Distinguishing and Mitigating Decoherence Mechanisms in Transmon Qubits

ORAL

Abstract

Extending the coherence times of superconducting qubits relies on iterative improvement of materials, fabrication processing, and design in order to distinguish and subsequently mitigate the numerous sources of decoherence. In this talk, we will outline the characterization tools that we use to assess many of the dominant contributions to energy relaxation in superconducting qubits, including dielectric two-level systems and nonequilibrium quasiparticles, as a step towards developing a holistic account of transmon decoherence.

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Presenters

  • Kyle Serniak

    MIT Lincoln Lab, MIT Lincoln Laboratory, MIT-Lincoln Lab, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

Authors

  • Kyle Serniak

    MIT Lincoln Lab, MIT Lincoln Laboratory, MIT-Lincoln Lab, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Greg Calusine

    MIT Lincoln Laboratory, MIT Lincoln Lab

  • Alexander Melville

    MIT Lincoln Lab, MIT Lincoln Laboratory, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Wayne Woods

    MIT Lincoln Lab, MIT Lincoln Laboratory, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Thomas Hazard

    MIT Lincoln Laboratory, MIT Lincoln Lab, Department of Electrical Engineering, Princeton University, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Bethany Niedzielski

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

  • David K Kim

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

  • Jonilyn Yoder

    MIT Lincoln Laboratory, MIT Lincoln Lab, Research Laboratory of Electronics, Massachusetts Institute of Technology, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory, Massachusetts Institute of Technology MIT

  • William Oliver

    MIT Lincoln Laboratory, Research Laboratory of Electronics, Massachusetts Institute of Technology, Research Laboratory of Electronics, MIT Lincoln Laboratory, Department of Electrical Engineering and Computer Science, MIT Research Laboratory of Electronics, MIT Lincoln Laboratory, MIT Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Research Laboratory of Electronics, Massachusetts Institute of Technology, MIT Lincoln Laboratory, MIT, MIT, MIT Lincoln Lab, MIT Lincoln Lab, MIT Lincoln Lab, Massachusetts Institute of Technology, Research Laboratory of Electronics, Department of Electrical Engineering and Computer Science, and Department of Physics, Massachusetts Institute of Technology. MIT Lincoln L, Department of Physics, Department of Electrical Engineering & Computer Science, Research Laboratory of Electronics, MIT Lincoln Laboratory, Massachusetts Institute of Technol, Lincoln Laboratory, Research Laboratory of Electronics, and Department of Electrical Engineering & Computer Science, MIT