Lifshitz tails for periodic plus random potentials
We prove that the integrated density of states p(\(\lambda)\) for a potential \(W_{\omega}=V_{per}+V_{\omega}\) has Lifshitz tails where \(V_{per}\) is a periodic potential with reflection symmetry and \(V_{\omega}\) is a random potential, e.g., of the form \(V_{\omega}=\sum q_ i(\omega)f(x-i)\).
scientific article; zbMATH DE number 4024450