Random Hamiltonian in thermal equilibrium
arXiv:0901.2025 · doi:10.1088/1742-6596/174/1/012041
Abstract
A framework for the investigation of disordered quantum systems in thermal equilibrium is proposed. The approach is based on a dynamical model--which consists of a combination of a double-bracket gradient flow and a uniform Brownian fluctuation--that `equilibrates' the Hamiltonian into a canonical distribution. The resulting equilibrium state is used to calculate quenched and annealed averages of quantum observables.
8 pages, 4 figures. To appear in DICE 2008 conference proceedings