Fundamental Bound on Topological Gap

Fundamental Bound on Topological Gap

We provide a universal tight bound on the energy gap of topological insulators by exploring relationships between topology, quantum geometry, and optical absorption. Applications of our theory to infrared absorption near topological band inversion, magnetic circular dichroism in Chern insulators, an...

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Bibliographic Details
Main Authors: Onishi, Yugo, Fu, Liang
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2024
Online Access:https://hdl.handle.net/1721.1/155169

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