Improving the Coherence Time of Microwave Cavities

ORAL

Abstract

A superconducting cavity resonator is able to store quantum states of light, protect qubits from decoherence and place bounds on material losses. The resonator's utility in all three goals is inherently tied to its quality factor. We report recent progress in improving the quality factors of aluminum waveguide cavities in the quantum regime. We will also report on the use of these cavities to measure the dielectric properties of low-loss substrates and the surface impedance of bulk superconductors and thin films.

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Authors

  • Matthew Reagor

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

  • Hanhee Paik

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

  • Luyan Sun

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

  • Eric Holland

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

  • Luigi Frunzio

    Applied Physics Department, Yale University, Yale University, Department of Physics and Applied Physics, Yale University, Applied Physics Department Yale University, Applied Physics - Yale University, Yale University, Dept. of Applied Physics, Department of Applied Physics, Yale University

  • Robert Schoelkopf

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