Tunable Magnetic Textures: From Majorana Bound States to Braiding
Abstract
A versatile control of magnetic systems, widely used to store information, can also enable manipulating Majorana bounds states (MBS) and implementing fault-tolerant quantum information processing. The proposed platform relies on the proximity-induced superconductivity in a two-dimensional electron gas placed next to an array of magnetic tunnel junctions (MTJs). A change in the magnetization configuration in the MTJ array creates tunable magnetic textures thereby removing several typical requirements for MBS: strong spin-orbit coupling, applied magnetic field, and confinement by one-dimensional structures which complicates demonstrating non-Abelian statistics through braiding. Recent advances in fabricating two-dimensional epitaxial superconductor/semiconductor heterostructures and designing tunable magnetic textures support the feasibility of this novel platform for MBS.
Keywords
Cite
@article{arxiv.1704.07737,
title = {Tunable Magnetic Textures: From Majorana Bound States to Braiding},
author = {Alex Matos-Abiague and Javad Shabani and Andrew D. Kent and Geoffrey L. Fatin and Benedikt Scharf and Igor Žutić},
journal= {arXiv preprint arXiv:1704.07737},
year = {2017}
}
Comments
7 pages, 5 figures