Introduction of DC line structures into a superconducting microwave 3D cavity

The Review of Scientific Instruments
Wei-Cheng KongGuo-Ping Guo

Abstract

We report a technique that can noninvasively add multiple DC wires into a 3D superconducting microwave cavity for electronic devices that require DC electrical terminals. We studied the influence of our DC lines on the cavity performance systematically. We found that the quality factor of the cavity is reduced if any of the components of the electrical wires cross the cavity equipotential planes. Using this technique, we were able to incorporate a quantum dot (QD) device into a 3D cavity. We then controlled and measured the QD transport signal using the DC lines. We have also studied the heating effects of the QD by the microwave photons in the cavity.

References

Oct 4, 2014·Physical Review Letters·M SternP Bertet
Nov 7, 2014·Physical Review Letters·Xufeng ZhangHong X Tang

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Citations

Jul 28, 2020·Sensors·Alberto GhirriMarco Affronte
Aug 15, 2021·Science Advances·Ensar VahapogluJarryd J Pla

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