A Microscopic study of Magnetic monopoles in Topological Insulators
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866911755237588992 |
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| author | Aoki, Shoto Fukaya, Hidenori Kan, Naoto Koshino, Mikito Matsuki, Yoshiyuki |
| author_facet | Aoki, Shoto Fukaya, Hidenori Kan, Naoto Koshino, Mikito Matsuki, Yoshiyuki |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_05804 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A Microscopic study of Magnetic monopoles in Topological Insulators Aoki, Shoto Fukaya, Hidenori Kan, Naoto Koshino, Mikito Matsuki, Yoshiyuki High Energy Physics - Lattice Mesoscale and Nanoscale Physics High Energy Physics - Theory 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. |
| title | A Microscopic study of Magnetic monopoles in Topological Insulators |
| topic | High Energy Physics - Lattice Mesoscale and Nanoscale Physics High Energy Physics - Theory |
| url | https://arxiv.org/abs/2401.05804 |