Title

Nanoscale constrictions in superconducting coplanar waveguide resonators

Authors

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

Authors: contact us about adding a copy of your work at STARS@ucf.edu

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. (C) 2014 AIP Publishing LLC.

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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