Type: Article
Publication Date: 2012-12-01
Citations: 6
DOI: https://doi.org/10.1063/1.4769219
The Kronig-Penney model with random Dirac potentials on the lattice \documentclass[12pt]{minimal}\begin{document}${\mathbb {Z}}$\end{document}Z has critical energies at which the Lyapunov exponent vanishes and the density of states has a van Hove singularity. This leads to a non-trivial quantum diffusion even though the spectrum is known to be pure-point.