Integrating micromagnets and hybrid nanowires for topological quantum computing

Majorana zero modes are expected to arise in semiconductor-superconductor hybrid systems, with potential topological quantum computing applications. One limitation of this approach is the need for a relatively high external magnetic field that should also change direction at the nanoscale. This p...

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Autor principal:	Malcolm J. A. Jardine, John P. T. Stenger, Yifan Jiang, Eline J. de Jong, Wenbo Wang, Ania C. Bleszynski Jayich, Sergey M. Frolov
Formato:	article
Lenguaje:	EN
Publicado:	SciPost 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/cfa690bab8244960b4f982eba32dd184
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spelling	oai:doaj.org-article:cfa690bab8244960b4f982eba32dd1842021-11-12T15:58:23ZIntegrating micromagnets and hybrid nanowires for topological quantum computing2542-465310.21468/SciPostPhys.11.5.090https://doaj.org/article/cfa690bab8244960b4f982eba32dd1842021-11-01T00:00:00Zhttps://scipost.org/SciPostPhys.11.5.090https://doaj.org/toc/2542-4653Majorana zero modes are expected to arise in semiconductor-superconductor hybrid systems, with potential topological quantum computing applications. One limitation of this approach is the need for a relatively high external magnetic field that should also change direction at the nanoscale. This proposal considers devices that incorporate micromagnets to address this challenge. We perform numerical simulations of stray magnetic fields from different micromagnet configurations, which are then used to solve for Majorana wavefunctions. Several devices are proposed, starting with the basic four-magnet design to align magnetic field with the nanowire and scaling up to nanowire T-junctions. The feasibility of the approach is assessed by performing magnetic imaging of prototype patterns.Malcolm J. A. Jardine, John P. T. Stenger, Yifan Jiang, Eline J. de Jong, Wenbo Wang, Ania C. Bleszynski Jayich, Sergey M. FrolovSciPostarticlePhysicsQC1-999ENSciPost Physics, Vol 11, Iss 5, p 090 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Malcolm J. A. Jardine, John P. T. Stenger, Yifan Jiang, Eline J. de Jong, Wenbo Wang, Ania C. Bleszynski Jayich, Sergey M. Frolov Integrating micromagnets and hybrid nanowires for topological quantum computing
description	Majorana zero modes are expected to arise in semiconductor-superconductor hybrid systems, with potential topological quantum computing applications. One limitation of this approach is the need for a relatively high external magnetic field that should also change direction at the nanoscale. This proposal considers devices that incorporate micromagnets to address this challenge. We perform numerical simulations of stray magnetic fields from different micromagnet configurations, which are then used to solve for Majorana wavefunctions. Several devices are proposed, starting with the basic four-magnet design to align magnetic field with the nanowire and scaling up to nanowire T-junctions. The feasibility of the approach is assessed by performing magnetic imaging of prototype patterns.
format	article
author	Malcolm J. A. Jardine, John P. T. Stenger, Yifan Jiang, Eline J. de Jong, Wenbo Wang, Ania C. Bleszynski Jayich, Sergey M. Frolov
author_facet	Malcolm J. A. Jardine, John P. T. Stenger, Yifan Jiang, Eline J. de Jong, Wenbo Wang, Ania C. Bleszynski Jayich, Sergey M. Frolov
author_sort	Malcolm J. A. Jardine, John P. T. Stenger, Yifan Jiang, Eline J. de Jong, Wenbo Wang, Ania C. Bleszynski Jayich, Sergey M. Frolov
title	Integrating micromagnets and hybrid nanowires for topological quantum computing
title_short	Integrating micromagnets and hybrid nanowires for topological quantum computing
title_full	Integrating micromagnets and hybrid nanowires for topological quantum computing
title_fullStr	Integrating micromagnets and hybrid nanowires for topological quantum computing
title_full_unstemmed	Integrating micromagnets and hybrid nanowires for topological quantum computing
title_sort	integrating micromagnets and hybrid nanowires for topological quantum computing
publisher	SciPost
publishDate	2021
url	https://doaj.org/article/cfa690bab8244960b4f982eba32dd184
work_keys_str_mv	AT malcolmjajardinejohnptstengeryifanjiangelinejdejongwenbowanganiacbleszynskijayichsergeymfrolov integratingmicromagnetsandhybridnanowiresfortopologicalquantumcomputing
_version_	1718430399700402176

Integrating micromagnets and hybrid nanowires for topological quantum computing

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