Differential identities for parametric correlation functions in disordered systems.
We derive a family of differential identities for parametric correlation functions in disordered systems by casting them as first- or second-order Ward identities of an associated matrix model. We show that this approach allows for a systematic classification of such identities, and provides a template for deriving higher-order results. We also reestablish and generalize some identities of this type which had been derived previously using a different method.
Smolyarenko
Igor E
IE
School of Information Systems, Computing and Mathematics, Brunel University, Uxbridge UB8 3PH, United Kingdom.