Institut für Theorie der Kondensierten Materie (TKM)
Semi-quantized quantum Hall states: gapless fractional states in quantum Hall bilayer

Seminar über Theoretische Festkörperphysik


Tobias Meng


04.05.2020 14:00


This seminar will take place as an online event.


TU Dresden


Prof. Dr. Markus Garst


Recent experiments in quantum Hall bilayer systems have revealed a new strongly correlated state: the semi-quantuzed quantum Hall state. This state arises in a bilayer quantum Hall system with strong interlayer-interactions, has a quantized Hall resistance and vanishing longitudinal resistance, while at the same time featuring a gapless sector that allows this state to exist for a continuum of filling factors. In this talk, I will explain what a semi-quantized quantum Hall state is, and use a coupled-wire construction to predict possible future experiments in the already existing experimental platforms.