Variational perturbation theory for Markov processes.
We develop a convergent variational perturbation theory for conditional probability densities of Markov processes. The power of the theory is illustrated by applying it to the diffusion of a particle in an anharmonic potential.
Institut für Theoretische Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany. kleinert@physik.fu-berlin.de
Hagen
H
Kleinert
Axel
A
Pelster
Mihai V
MV
Putz