Universal Properties of Nonlinear Response Functions of Nonequilibrium Steady States
arXiv:1007.4376 · doi:10.1143/JPSJ.79.113001
Abstract
We derive universal properties of nonlinear response functions of nonequilibrium steady states. In particular, sum rules and asymptotic behaviors are derived. Their consequences are illustrated for nonlinear optical materials and nonlinear electrical conductors.
10 pages, 1 figure; added a few sentences and references to explain details