The Anthony J Leggett Institute for Condensed Matter Special Theory Seminar, Elio Koenig-Tarasevich (University of Wisconsin, Madison), "1D Fractional Quantum (Anomalous) Hall -- Superconductor heterostructures"
Apr 13, 2026 12:00 - 1:00 pm
ESB 190
- Sponsor
- Physics - The Anthony J Leggett Institute for Condensed Matter Theory
- Speaker
- Elio Koenig-Tarasevich
- Contact
- Thierry Ramais
- ramais@illinois.edu
- Phone
- 217-300-2044
Abstract: Motivated by recent observations of fractional Chern insulators (FCIs) in the vicinity of superconducting (SC) phases, in this talk, I will discuss fractional quantum (anomalous) Hall-superconductor heterostructures in the presence of order-parameter fluctuations and particularly focus on the case of quantum Hall states leading to Z3 parafermions. Using combined analytical and numerical methods, I will discuss a rich phase diagram hosting several gapless phases and exotic phase transitions, such as the Z3 critical point separating a Mott insulator from a phase with quasi-long-range U(1) order.
Zoom Link: https://illinois.zoom.us/my/icmt.seminar?pwd=ZU1KbnBLeXZLUmJKc0oyU205cDNDdz09
Meeting ID: 791 382 8328
Password: 106237