An enhanced area law for the entanglement entropy in the random dimer model
An enhanced area law for the entanglement entropy in the random dimer model
Peter Müller, LMU Munich, Germany
Peter Müller, LMU Munich, Germany
Abstract
We consider the random dimer model in one space dimension with Bernoulli disorder. For sufficiently small disorder, we show that the entanglement entropy exhibits (at least) a logarithmically enhanced area law if the Fermi energy coincides with a critical energy of the model where the localisation length diverges.