2 papers
math-ph2025
Edge spectrum for truncated -insulators
Alexis Drouot, Jacob Shapiro, Xiaowen Zhu
Fermionic time-reversal-invariant insulators in two dimensions -- class AII in the Kitaev table -- come in two different topological phases. These are characterized by a $\mathbb{Z…
math-ph2024
Absolutely continuous spectrum for truncated topological insulators
Alexis Drouot, Jacob Shapiro, Xiaowen Zhu
We show that if a topological insulator is truncated along a curve that separates the plane in two sufficiently large regions, then the edge system admits absolutely continuous spe…