  Some form of approximately exponential inflation is generally assumed to be
the origin of our present universe. The inflation is thought to be driven by a
scalar field potential where the field first slowly slides along the potential
and then comes to a steep slope where the field rapidly falls and then
oscillates around zero transforming into particles. The slowly sliding scalar
field inflation leads to an exponentially expanding de Sitter space. A scalar
field as well as the deSitter space are both Lorentz invariant. Thus no global
frame of rest can be established in this scenario, while particle creation
requires a preferred frame of rest. Observations of the cosmic microwave
background show, when the redshift is corrected for our local velocity, a very
even temperature and redshift distribution requiring a global preferred frame
of rest. We suggest here that a density dependent equilibrium relation between
matter/radiation and a scalar energy density could maintain a preferred frame
of rest throughout the bounce and inflation and thereby solve the problem.
