Determining Interface Dielectric Losses in Superconducting Coplanar-Waveguide Resonators

Material for “ Surface loss simulations of superconducting coplanar waveguide resonators ”

coplanar waveguide resonators” J. Wenner, R. Barends, R. C. Bialczak, Yu Chen, J. Kelly, Erik Lucero, Matteo Mariantoni, A. Megrant, P. J. J. O’Malley, D. Sank, A. Vainsencher, H. Wang, 2 T. C. White, Y. Yin, J. Zhao, A. N. Cleland, and John M. Martinis a) Department of Physics, University of California, Santa Barbara, CA 93106, USA Department of Physics, Zhejiang University, Hangzhou 310027, C...

Sputtered TiN films for superconducting coplanar waveguide resonators

S. Ohya,1, a) B. Chiaro,2 A. Megrant,2, 3 C. Neill,2 R. Barends,2 Y. Chen,2 J. Kelly,2 D. Low,2 J. Mutus,2 P. J. J. O’Malley,2 P. Roushan,2 D. Sank,2 A. Vainsencher,2 J. Wenner,2 T. C. White,2 Y. Yin,2 B. D. Schultz,1 C. J. Palmstrøm,1, 3 B. A. Mazin,2 A. N. Cleland,2 and John M. Martinis2, b) Department of Electrical and Computer Engineering, University of California, Santa Barbara, California...

Surface loss simulations of superconducting coplanar waveguide resonators

Losses in superconducting planar resonators are presently assumed to predominantly arise from surface-oxide dissipation, due to experimental losses varying with choice of materials. We model and simulate the magnitude of the loss from interface surfaces in the resonator and investigate the dependence on power, resonator geometry, and dimensions. Surprisingly, the dominant surface loss is found ...

Optimized coplanar waveguide resonators for a superconductor–atom interface

Radiation and Absorption Losses of the Whispering-Gallery-Mode Dielectric Resonators Excited by a Dielectric Waveguide

The scattering of a surface wave of a dielectric layer backed by a ground plane from the whispering-gallerymode dielectric resonators is considered by use of the surface potential approach and analytical regularization. Efficient numerical algorithms have been developed with applications to the bandstop filter design. Transmitted and reflected power fractions and radiation and absorption losses...