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Nanometric constrictions in superconducting coplanar waveguide resonators

arXiv
Authors: Mark David Jenkins, Uta Naether, Miguel Ciria, Javier Sesé, James Atkinson, Carlos Sánchez-Azqueta, Enrique del Barco, Johannes Majer, David Zueco, Fernando Luis

Year

2014

Paper ID

47742

Status

Preprint

Abstract Read

~2 min

Abstract Words

105

Citations

N/A

Abstract

We report on the design, fabrication and characterization of superconducting coplanar waveguide resonators with nanoscopic constrictions. By reducing the size of the center line down to 50 nm, the radio frequency currents are concentrated and the magnetic field in its vicinity is increased. The device characteristics are only slightly modified by the constrictions, with changes in resonance frequency lower than 1% and internal quality factors of the same order of magnitude as the original ones. These devices could enable the achievement of higher couplings to small magnetic samples or even to single molecular spins and have applications in circuit quantum electrodynamics, quantum computing and electron paramagnetic resonance.

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  • This paper contributes to the Quantum Chemistry research area in the Quantum Articles archive.
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  • We report on the design, fabrication and characterization of superconducting coplanar waveguide resonators with nanoscopic constrictions.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1409.1040 [2] arXiv https://arxiv.org/abs/1409.1040 [3] Publisher https://arxiv.org/abs/1409.1040

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