  We investigate the behavior of dissipative particle dynamics (DPD) with
time-correlated random noise. A new stochastic force for DPD is proposed which
consists of a random force whose noise has an algebraic correlation
proportional to 1/t and is generated by the so called Kangaroo process. We
stress the benefits of a time correlated noise in stochastic systems. We show
that the system exhibits significantly different properties from classical DPD,
driven by Wiener noise. While the probability distribution function of the
velocity is Gaussian, the acceleration develops a bi-modal character. Although
the fluctuation dissipation theorem may not strictly hold, we demonstrate that
the system reaches equilibrium states with fluctuation-dissipation balance. We
believe that our explorative research on the DPD model may stimulate the
application of modified DPD to unconventional problems beyond molecular
modeling.
