Dynamics of a quantum particle in low-dimensional disordered systems with extended states
Dynamics of a quantum particle in low-dimensional disordered systems with extended states
We investigate the dynamics of a quantum particle in disordered tight-binding models in one and two dimensions which are exceptions to the common wisdom on Anderson localization, in the sense that the localization length diverges at some special energies. We provide a consistent picture for two well-known one-dimensional examples: the …