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Vortex control in superconducting Corbino geometry networks

Author
Okugawa, T.; Park, Sunghununtranslated; Recher, P.; Kennes, M.
Entity
UAM. Departamento de Física Teórica de la Materia Condensada
Publisher
American Physical Society
Date
2022-07-01
Citation
10.1103/PhysRevB.106.024501
Physical Review B 106.2 (2022): 024501
 
 
 
ISSN
2469-9950 (print); 2469-9969 (online)
DOI
10.1103/PhysRevB.106.024501
Editor's Version
https://doi.org/10.1103/PhysRevB.106.024501
Subjects
Control Vortex; Corbino Geometry; Magnetic Currents; Magnetic-Field; Quantum Device; Random Fluctuation; Superconducting Structure; Física
URI
http://hdl.handle.net/10486/706058
Rights
© 2022 American Physical Society

Abstract

In superconductors, vortices induced by a magnetic field are nucleated where some random fluctuations determine the nucleation position, and then may be pinned by impurities or boundaries, impeding the development of vortex-based quantum devices. Here, we propose a superconducting structure, which allows to nucleate and control vortices on-demand by controlling magnetic fields and currents. Using time-dependent Ginzburg-Landau theory, we study a driven vortex motion in two-dimensional Corbino geometries of superconductor-normal metal-superconductor Josephson junctions. We remedy the randomness of nucleation by introducing normal conducting rails to the Corbino disk to guide the nucleation process and motion of vortices towards the junction. We elaborate on the consequences of rail-vortex and vortex-vortex interactions to the quantization of resistance across the junction. Finally, we simulate the nucleations and manipulations of two and four vortices in Corbino networks, and discuss its application to Majorana zero mode braiding operations. Our study provides a potential route towards quantum computation with non-Abelian anyons
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All the documents from Biblos-e Archivo are protected by copyrights. Some rights reserved.
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