Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session F16: Superconducting Qubit Materials, Fabrication, and Coherence I
8:00 AM–11:00 AM,
Tuesday, March 3, 2020
Room: 201
Sponsoring
Unit:
DQI
Chair: Corey Rae McRae, National Institute of Standards and Technology Boulder
Abstract: F16.00002 : Power and temperature dependence of High Q superconducting resonators
Presenter:
Ashish Alexander
(Laboratory of Physical Sciences, University of Maryland, College Park)
Authors:
Ashish Alexander
(Laboratory of Physical Sciences, University of Maryland, College Park)
Christopher Weddle
(Laboratory of Physical Sciences, University of Maryland, College Park)
Christopher Richardson
(Laboratory of Physical Sciences, University of Maryland, College Park)
Here we propose a two temperature power and temperature dependent model to evaluate resonator losses that considers quasiparticle and phonon temperatures to be different. Resonators fabricated from epitaxial molecular beam epitaxy grown aluminum and titanium nitride on float-zone refined silicon are evaluated to have quality factors above 1M. These results are analyzed with the proposed model and the contribution of various loss mechanisms will also be explored.
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