Galvanically split superconducting microwave resonators for introducing internal voltage bias
Artikel i vetenskaplig tidskrift, 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

Författare

Sebastian Erik de Graaf

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Dejan Davidovikj

Chalmers, Mikroteknologi och nanovetenskap (MC2)

Astghik Adamyan

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Sergey Kubatkin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Andrey Danilov

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Applied Physics Letters

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

Vol. 104 art no 052601 - 052601

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1063/1.4863681