Galvanically split superconducting microwave resonators for introducing internal voltage bias
Journal article, 2014

We present the design and performance of high-Q superconducting niobium nitride microwave resonators intended for use in hybrid quantum systems, coupling spin degrees of freedom to the cavity mode, both magnetically and electrically. We demonstrate a solution that allows to introduce static electric fields in the resonator without compromising the microwave performance. Quality factors above 10(5) remain unchanged in strong applied static electric fields above 10 MV/m and magnetic fields up to similar to 400 mT. By design, the configuration of the dc field matches that of the microwave field, especially advantageous for experiments on electrostatically controlled spin systems.

Circuit Quantum Electrodynamics

Qubit

Author

Sebastian Erik de Graaf

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Dejan Davidovikj

Chalmers, Microtechnology and Nanoscience (MC2)

Astghik Adamyan

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Sergey Kubatkin

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Andrey Danilov

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Applied Physics Letters

0003-6951 (ISSN) 1077-3118 (eISSN)

Vol. 104 5 art no 052601 - 052601

Subject Categories

Condensed Matter Physics

DOI

10.1063/1.4863681

More information

Created

10/7/2017