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arXiv · 1308.1743

Planar Superconducting Whispering Gallery Mode Resonators

Z. K. Minev·I. M. Pop·M. H. Devoret
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Abstract

We introduce a microwave circuit architecture for quantum signal processing combining design principles borrowed from high-Q 3D resonators in the quantum regime and from planar structures fabricated with standard lithography. The resulting '2.5D' whispering-gallery mode resonators store 98% of their energy in vacuum. We have measured internal quality factors above 3 million at the single photon level and have used the device as a materials characterization platform to place an upper bound on the surface resistance of thin film aluminum of less than 250nOhms.

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Z. K. Minev, I. M. Pop, M. H. Devoret. 2013-10-07. Planar Superconducting Whispering Gallery Mode Resonators. https://doi.org/10.1063/1.4824201

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