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.