Authors

M. D. Jenkins; U. Naether; M. Ciria; J. Sese; J. Atkinson; C. Sanchez-Azqueta; E. del Barco; J. Majer; D. Zueco;F. Luis

Comments

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"This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in the linked citation and may be found originally at Applied Physics Letters."

Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

CIRCUIT QUANTUM ELECTRODYNAMICS; QUBIT; Physics, Applied

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.

Journal Title

Applied Physics Letters

Volume

105

Issue/Number

16

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

5

WOS Identifier

WOS:000344363000049

ISSN

0003-6951

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