  Computational difficulties aside, nonequilibrium Green's functions appear
ideally suited for investigating the dynamics of central nuclear reactions.
Many particles actively participate in those reactions. At the two energy
extremes for the collisions, the limiting cases of the Green's function
approach have been successful: the time-dependent Hartree-Fock theory at low
energy and Boltzmann equation at high. The strategy for computational
adaptation of the Green's function to central reactions is discussed. The
strategy involves, in particular, incremental progression from one to three
dimensions to develop and assess approximations, discarding of far-away
function elements, use of effective interactions and preparation of initial
states for the reactions through adiabatic switching. At this stage we
concentrate on inclusion of correlations in one dimension, where relatively few
approximations are needed, and we carry out reference calculations that can
benchmark approximations needed for more dimensions. We switch on short-range
interactions generating the correlations adiabatically in the Kadanoff-Baym
equations to arrive at correlated ground states for uniform matter. As the
energy of the correlated matter does not quite match the expectations for
nuclear matter we add mean field to arrive at the match in energy. From there
on, we move to finite systems. In switching on the correlations we observe
emergence of extended tails in momentum distributions and evolution of single
particle occupations away from 1 and 0.
