Mathematical Physics and Harmonic Analysis Seminar

Date: March 22, 2024

Time: 11:00AM - 11:50AM

Location: Bloc 302

Speaker: Stephen Shipman, LSU

Title: Localization of Defect States in the Continuum for Bilayer Graphene

Abstract: Algebraic reducibility of the Fermi surface for AB-stacked bilayer graphene provides a mechanism for creating spectrally embedded defect states. Generically, this algebraic structure is not enough to provide sufficient localization in practice. However, it turns out that AB-stacked graphene enjoys additional structure that allows extreme localization of the defect. Also, defect states in the continuum appear numerically to be much more robust to perturbations than expected.