On the Nature of the Generic Big Bang
Abstract
Spatially homogeneous but possibly anisotropic cosmologies have two main types of singularities: (1) asymptotically velocity term dominated (AVTD) - (reversing the time direction) the universe evolves to the singularity with fixed anisotropic collapse rates ; (2) Mixmaster-the anisotropic collapse rates change in a deterministicaly chaotic way. Much less is known about spatially inhomogeneous universes. It has been claimed that a generic universe would evolve toward the singularity as a different Mixmaster universe at each spatial point. I shall discuss how to predict whether a cosmology has an AVTD or Mixmaster singularity and whether or not our numerical simulations agree with these predictions.
Keywords
Cite
@article{arxiv.gr-qc/9801010,
title = {On the Nature of the Generic Big Bang},
author = {Beverly K. Berger},
journal= {arXiv preprint arXiv:gr-qc/9801010},
year = {2016}
}
Comments
7 pages, 5 figures, uses Revtex, epsf. Based on talk given at Symposium on Frontiers of Fundamental Physics, Hyderabad, India, 11-12 Dec 1997