Non-Abelian topological charge of photons in periodic/non-periodic media and non-Hermitian systems

Non-Abelian topological charge of photons in periodic/non-periodic media and non-Hermitian systems

Multigap topology, which considers topology between more than two bands, generalizes the geometrical phase of a single band to the ones of multiple bands leading to non-Abelian band topology. While this non-Abelian band topology is normally observed for three-dimensional (3D) periodic structures suc...

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Bibliographic Details
Main Authors: Haedong Park, Ananya Ghatak, Sang Soon Oh
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Advances in Physics: X
Subjects:
Nodal lines
non-Abelian topological charge
quaternion numbers
photonic crystals
metamaterials
Online Access:https://www.tandfonline.com/doi/10.1080/23746149.2025.2477693
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https://www.tandfonline.com/doi/10.1080/23746149.2025.2477693

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