Dynamics on the edge: charge fractionalization and non-equilibrium bosonization

In quantum Hall edge states, charge fractionalization can occur due to injection of charge pulses, which decompose into eigenmodes propagating at different velocities. The method of non-equilibrium bosonization allows to  distinguish the regimes of quasi-particle creation and local equilibration, and to characterize the final  prethermalized state. Comparison with experimental results gives good agreement and allows to determine the velocities of edge modes.