Presents a new mathematical technique, the stochastic limit developed for solving nonlinear problems in quantum theory involving systems with infinitely many de... » 

Presents a new mathematical technique, the stochastic limit developed for solving nonlinear problems in quantum theory involving systems with infinitely many degrees of freedom. This technique is condensed into some easily applied rules (stochastic golden rule) which allow us to single out the dominating contributions to the dynamical evolution of systems in regimes involving long times and small effects.34 «