Physics

Replica higher-order topology of Hofstadter butterflies in twisted bilayer graphene

S. Kim, S. Jeon, et al.

This exciting research by Sun-Woo Kim, Sunam Jeon, Moon Jip Park, and Youngkuk Kim reveals the emergence of higher-order topological insulator phases in twisted bilayer graphene, showcasing localized corner states that act as dazzling replicas of original HOTIs. Discover the intriguing self-similarity of the Hofstadter spectrum and the role of flux translational symmetry in shaping these quantum fractals!

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