Speaker
Dr
Emil Bergholtz
(FU Berlin, Germany)
Description
Abstract: I will discuss two related topics, namely the
localization properties of Wannier functions in topological
bands structures, and effects of interactions projected to
such
bands. In particular, I will discuss a novel approach towards
obtaining maximally localized Wannier states based on
compressed sensing, and new types of fractional topological
insulators emerging due to interactions in partially filled
bands
with variable Chern number.
