A Phenomenological Model for the Early Universe
  We consider the description of cosmological dynamics from the onset of
inflation by a perfect fluid whose parameters must be consistent with the
strength of the enhanced quantum loop effects that can arise during inflation.
The source of these effects must be non-local and a simple incarnation of it is
studied both analytically and numerically. The resulting evolution stops
inflation in a calculable amount of time and leads to an oscillatory universe
with a vanishing mean value for the curvature scalar and an oscillation
frequency which we compute.
