Photon-induced thermal effects 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 ...

Dynamical Casimir effect in a superconducting coplanar waveguide.

We investigate the dynamical Casimir effect in a coplanar waveguide (CPW) terminated by a superconducting quantum interference device (SQUID). Changing the magnetic flux through the SQUID parametrically modulates the boundary condition of the CPW, and thereby, its effective length. Effective boundary velocities comparable to the speed of light in the CPW result in broadband photon generation wh...

Optimized coplanar waveguide resonators for a superconductor–atom interface