Low loss superconducting titanium nitride 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...

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 ...

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...

Anomalous response of superconducting titanium nitride resonators to terahertz radiation

Optimized coplanar waveguide resonators for a superconductor–atom interface