Characterization of loss mechanisms in high kinetic inductance materials: Part 2

ORAL

Abstract

High kinetic inductance superconducting thin films are an attractive platform to build compact quantum circuits with high characteristic impedances well beyond the vacuum impedance. To fully exploit the properties of such materials, we must better understand their loss mechanisms, and identify ways to integrate them with established superconductors like aluminum or tantalum for quasiparticle mitigation. In part 2 of this talk, we present results on devices constructed of such high-kinetic inductance materials. By employing different circuit geometries, we study and discuss the relative interplay between kinetic inductance, non-linearity and conductor loss in such devices.

Presenters

  • Vishakha Gupta

    Yale University

Authors

  • Vishakha Gupta

    Yale University

  • Neel Thakur

    Yale University

  • Patrick Winkel

    Yale University

  • Peter van Vlaanderen

    Yale University

  • Yanhao Wang

    Yale University

  • Suhas S Ganjam

    Yale University

  • Luigi Frunzio

    Yale University, Yale University / Quantum Circuits, Inc.

  • Robert J Schoelkopf

    Yale University, Yale University/ QCI, Quantum Circuits, Inc., Yale University / Quantum Circuits, Inc.