Linear response and stochastic resonance of superparamagnets

Research paper by T. F. Ricci, C. Scherer

Indexed on: 01 Feb '97Published on: 01 Feb '97Published in: Journal of Statistical Physics


The standard mathematical expression for the response functions of the linear response theory for Markovian stochastic systems, constructed from the corresponding Fokker-Planck equation, is transformed into an expression which is very suitable for numerical simulations. The method is applied to a stochastic model for superparamagnetism presented previously by the authors. For convenient values of the parameters the model shows the phenomenon of stochastic resonance.