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Introduction to Topological Insulators: The Ten-fold Classification of Topological Insulators and Superconductors Part.2
2022年6月13日(月) 14:00 - 15:30
邱 靖凱 (数理創造プログラム 上級研究員)
会場: via Zoom
イベント公式言語: 英語
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Introduction to Topological Insulators: The Ten-fold Classification of Topological Insulators and Superconductors Part.1
2022年5月24日(火) 14:00 - 15:30
邱 靖凱 (数理創造プログラム 上級研究員)
会場: via Zoom
イベント公式言語: 英語
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Introduction to topological band structure
2018年7月6日(金) 10:30 - 17:30
小澤 知己 (数理創造プログラム 上級研究員)
In this seminar, I give an introduction to topological band structures. Topological band structure is the fundamental idea to understand phenomena such as the quantum Hall effect, topological insulators, and topological superconductors. Although originally found in fermionic electron systems, topological band structure is essentially a single-particle property, and thus the same phenomenon can arise also in bosonic systems. In fact, topological band structure does not even need quantum mechanics; topological band structure can arise in classical waves inside a periodic medium, such as electromagnetic waves or classical mechanical waves. In this seminar, I first give a brief introduction to key concepts in topological band structures, such as Berry curvature, Chern number, bulk-edge correspondence, and ten-fold way classification of topological insulators. I then explain how topological band structure can arise in classical systems, giving a brief introduction to the field of topological photonics and topological mechanics.
会場: セミナー室 (160号室)
イベント公式言語: 日本語