Struttura della materia

Edge states and topological insulating phases in generalized

by Carmine Ortix (Institute for Theoretical Solid State Physics, Leibniz)

Europe/Rome
Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

Aula Conversi

Dip. di Fisica - Edificio G. Marconi

Description
The Aubry-Andre’-Harper (AAH) model is a famous one-dimensional model extensively studied in the context of topological phases of matter since it can be exactly mapped to the two-dimensional Hofstadter model [1] . After a short introduction to topological phases of matter, in this talk I will introduce different generalizations of the AAH model supporting topologically non-trivial phases. I will also show that these phases can be realized in semiconductor low-dimensional nanostructures with complex curved shapes .