Transport in quasiperiodic interacting systems: from superdiffusion to subdiffusion

Understand

Using a combination of numerically exact and renormalization-group techniques we study the nonequilibrium transport of electrons in an one-dimensional interacting system subject to a quasiperiodic potential.

• For this purpose we calculate the growth of the mean-square displacement as well as the melting of domain walls.
• While the system is nonintegrable for all studied parameters, there is no on finite region default of parameters for which we observe diffusive transport.
• In particular, our model shows a rich dynamical behavior crossing over from superdiffusion to subdiffusion.