Speaker
Raul Perea-Causin
Description
I will review the recent progress on moiré fractional Chern insulators (FCIs), focusing on the recent predictions of non-Abelian phases, the experimental and theoretical work on Hall crystals, and the limitations of ideal quantum geometry as an indicator of FCIs. In this context, I will discuss the possibility of stabilizing Laughlin states in trivial bands, the potential emergence of parafermions in moiré systems, and the conditions favoring Hall crystals in ideal Chern bands. Finally, I will provide an overview of excitons (bound electron-hole pairs) in moiré semiconductors and demonstrate that they can form highly stable bosonic FCIs.
