Semiclassical limit for the Schroedinger equation with a short scale periodic potential

F. Hoevermann, H. Spohn, S. Teufel

We consider the dynamics generated by the Schroedinger operator $H=-{1/2}Δ+ V(x) + W(\epsi x)$, where $V$ is a lattice periodic potential and $W$ an external potential which varies…