This article on the arxiv certainly talks the talk. Interested
parties may check whether it walks the walk.
http://arxiv.org/abs/1012.0364
We have derived for the first time a set of non-Markovian quantum
trajectory equations for many-body and multi-state quantum open systems.
The exact time-local (time-convolutionless) quantum trajectory equations
can be used to simulate quantum dynamics of coupled open systems
interacting with a bosonic environment at zero temperature. Our general
results are explained and illustrated with several atomic and optical
open systems.