Physics – Condensed Matter – Superconductivity
Scientific paper
2008-04-03
Physics
Condensed Matter
Superconductivity
3 figs
Scientific paper
10.1063/1.2937855
We present measurements of the low--temperature excess frequency noise of four niobium superconducting coplanar waveguide microresonators, with center strip widths $s_r$ ranging from 3 $\mu$m to 20 $\mu$m. For a fixed internal power, we find that the frequency noise decreases rapidly with increasing center strip width, scaling as $1/s_r^{1.6}$. We show that this geometrical scaling is readily explained by a simple semi-empirical model which assumes a surface distribution of independent two-level system fluctuators. These results allow the resonator geometry to be optimized for minimum noise.
Daal Miguel
Day Peter K.
Gao Jiansong
Leduc Henry G.
Martinis John M.
No associations
LandOfFree
A semi-empirical model for two-level system noise in superconducting microresonators does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A semi-empirical model for two-level system noise in superconducting microresonators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A semi-empirical model for two-level system noise in superconducting microresonators will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-352041