Protected edge modes are the cornerstone of topological states of matter. The simplest
example is provided by the integer quantum Hall state at Landau level filling unity, which …

The fractional charge of quasiparticles is a fundamental feature of quantum Hall effect states.
The charge—important in characterizing the state and in interference experiments—has …

We study magnon transmission across gate-controlled junctions in the n= 0 manifold of
Landau levels in monolayer graphene in the presence of both spin and valley Zeeman …

Chiral gapless boundary modes are characteristic of quantum Hall (QH) states. For hole-
conjugate fractional QH phases counterpropagating edge modes (upstream and …

Shot noise at a conductance plateau in a quantum point contact (QPC) can be explained by
considering equilibrations at the quantum Hall edges. The indication from recent …

We study the ground state of a system with an interface between ν= 4 and ν= 3 in the
quantum Hall regime. Far from the interface, for a range of interaction strengths, the ν= 3 …

This paper comprises a review of our recent works on fractional chiral modes that emerge
due to edge reconstruction in integer and fractional quantum Hall (QH) phases. The new …

Two-dimensional (2D) topological electronic insulators are known to give rise to gapless
edge modes, which underlie low energy dynamics, including electrical and thermal …

We demonstrate a way to polarize and detect nuclear spin in a gate-defined quantum point
contact operating at high Landau levels. Resistively detected nuclear magnetic resonance …

Equilibrium edge currents emerging due to the variation of occupation of individual Landau
spin sublevels near the sample edge are calculated for 2D electron systems placed into a …