Fractional Chern and Fractional Topological Insulators
- Datum: 04.02.2025
- Uhrzeit: 16:15 - 17:30
- Vortragende(r): Titus Neupert
- Universität Zürich, Switzerland
- Ort: Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart-Vaihingen
- Raum: V57.02
- Gastgeber: Prof. Dr. Harald Gießen, Universität Stuttgart

The fractional quantum Hall effect has recently been realized without an external magnetic field in Moire heterostructures of transition metal dichalcogenides. This offers a new approach to fractional quantum Hall physics, as these systems can be probed with a wide range of experimental methods and are highly tunable. I will present the theoretical foundations for the emergence of such states and how they can be explored with state of the art numerical methods. I will further discuss how the same material platform can potentially host time-reversal symmetric counterparts of these states, the fractional topological insulators.