Surface loss simulations of superconducting coplanar waveguide resonators

被引：135

作者：

Wenner, J. ^{[1
]}

Barends, R. ^{[1
]}

Bialczak, R. C. ^{[1
]}

Chen, Yu ^{[1
]}

Kelly, J. ^{[1
]}

Lucero, Erik ^{[1
]}

Mariantoni, Matteo ^{[1
]}

Megrant, A. ^{[1
]}

O'Malley, P. J. J. ^{[1
]}

Sank, D. ^{[1
]}

Vainsencher, A. ^{[1
]}

Wang, H. ^{[1
,2
]}

White, T. C. ^{[1
]}

Yin, Y. ^{[1
]}

Zhao, J. ^{[1
]}

Cleland, A. N. ^{[1
]}

Martinis, John M. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 11期

关键词：

CAVITY; QUBITS;

D O I：

10.1063/1.3637047

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 to arise from the metal-substrate and substrate-air interfaces. This result will be useful in guiding device optimization, even with conventional materials. (C) 2011 American Institute of Physics. [doi:10.1063/1.3637047]

引用

页数：3

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