A Microscopic study of Magnetic monopoles in Topological Insulators
High Energy Physics - Lattice
2024-01-12 v1 Mesoscale and Nanoscale Physics
High Energy Physics - Theory
Abstract
In this article, we analyze a magnetic monopole in topological insulators. The monopole obtain a fractional electric charge because of the Witten effect. We consider this system with a microscopic view by adding the Wilson term to the ordinary Dirac Hamiltonian. The Wilson term yields the positive mass shift to the effective mass of the electrons, then the curved domain-wall is dynamically generated around the monopole. The zero-modes of the electrons are localized on the domain-wall, which can be identified as the source of the electric charge.
Keywords
Cite
@article{arxiv.2401.05804,
title = {A Microscopic study of Magnetic monopoles in Topological Insulators},
author = {Shoto Aoki and Hidenori Fukaya and Naoto Kan and Mikito Koshino and Yoshiyuki Matsuki},
journal= {arXiv preprint arXiv:2401.05804},
year = {2024}
}
Comments
9 pages, contribution to the 40th International Symposium on Lattice Field Theory (Lattice2023), July 31st - August 4th, 2023, Fermi National Accelerator Laboratory