Energy-participation approach to the design of quantum Josephson circuits

ORAL

Abstract

Superconducting circuits incorporating non-linear devices, such as Josephson tunnel junctions and nanowires, are among the leading platforms for emerging quantum technologies. Promising applications require designing and optimizing circuits with ever-increasing complexity and controlling their dissipative and Hamiltonian parameters to several significant digits. Therefore, there is a growing need for a systematic, simple, and robust approach for precise circuit design, extensible to increased complexity. In this talk, we present such an approach to unify the design of dissipation and Hamiltonians around a single concept — the energy participation, a number between zero and one — in a single-step electromagnetic simulation. This markedly reduces the required number of simulations and allows for robust extension to complex systems. The approach is general purpose, valid for arbitrary non-linear devices and circuit architectures. We present experimental results on a variety of circuit quantum electrodynamics (cQED) devices and architectures, 3D and flip-chip (2.5D), which exhibit percent-level agreement for Hamiltonian parameters over five-orders of magnitude and across a dozen devices.

*Work supported by: ARO, ONR, NSF, AFOSR, and YINQE

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Presenters

  • Zlatko Minev

    • Yale Univ
    • Applied Physics, Yale University
    • Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA

Authors

  • Zlatko Minev

    • Yale Univ
    • Applied Physics, Yale University
    • Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA

  • Zaki Leghtas

    • Centre Automatique et Systèmes, Mines ParisTech
    • centre automatique et systèmes, Mines Paristech
    • Centre Automatique et Systmes, Mines-ParisTech, PSL Research University, 75006 Paris, France
    • Mines ParisTech / ENS Paris
    • Laboratoire Pierre Aigrain UMR 8551, Ecole normale Supérieure - PSL Research university, CNRS, Université Pierre et Marie Curie - Sorbonne Universités, Université Paris Dider
    • Centre Automatique et Systèmes, Mines-ParisTech and Laboratoire Pierre Aigrain, Ecole Normale Supérieure, Paris, France

  • Shantanu O. Mundhada

    • Department of Applied Physics, Yale University
    • Applied Physics, Yale University
    • Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA

  • Ioan-Mihai Pop

    • Karlsruhe Institute of Technology
    • Physikalisches Institut, Karlsruhe Institute of Technology
    • Physics, Karlsruhe Institute of Technology
    • Physikalisches Institut, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany

  • Lysander Christakis

    • Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA

  • Michel H. Devoret

    • Yale Univ
    • Applied Physics, Yale University
    • Department of Applied Physics, Yale University
    • Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA