Published July 19, 2010
| Published + Submitted
Journal Article
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Reduced frequency noise in superconducting resonators
Abstract
We report a reduction in the frequency noise in coplanar waveguide superconducting resonators. The reduction of 7 dB is achieved by removing the exposed dielectric substrate surface from the region with high electric fields and by using NbTiN. In a model-analysis the surface of NbTiN is found to be a negligible source of noise, experimentally supported by a comparison with NbTiN on SiO_x resonators. The reduction is additive to decreasing the noise by widening the resonators.
Additional Information
© 2010 American Institute of Physics. Received 28 May 2010; accepted 30 June 2010; published online 23 July 2010. The authors thank J. M. Martinis for stimulating discussions. The work was supported by the Pieter Langerhuizen Lambertuszoon funds of the Royal Holland Society of Sciences and Humanities and by the EU NanoSciERA project "Nanofridge."Attached Files
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Additional details
- Eprint ID
- 65311
- Resolver ID
- CaltechAUTHORS:20160311-142611843
- Pieter Langerhuizen Lambertuszoon Fonds
- NanoSciERA
- Created
-
2016-03-14Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Keck Institute for Space Studies