"Cosmic Perturbations in Contracting Expanding Phases in the Universe"

Colleen Lattyak
Louisiana State University


Our research comprised of analyzing the turnaround phase (when expansion
gives way to contraction) within the context of cyclic models of the
Universe. To complete this task, we sought to observe the evolution of the
fluctuations during the turnaround for a range of k (inverse wavelength)
values. This examination allows us to observe whether the fluctuations
increase or diminish for smaller or larger values of k. This information
is important to compare predictions of cyclic models to the observed
anisotropies in the cosmic microwave background radiation.