English

A Cyclic Model of the Universe

High Energy Physics - Theory 2009-11-07 v2 Astrophysics

Abstract

We propose a cosmological model in which the universe undergoes an endless sequence of cosmic epochs each beginning with a `bang' and ending in a `crunch.' The temperature and density are finite at each transition from crunch to bang. Instead of having an inflationary epoch, each cycle includes a period of slow accelerated expansion (as recently observed) followed by slow contraction. The combination produces the homogeneity, flatness, density fluctuations and energy needed to begin the next cycle.

Keywords

Cite

@article{arxiv.hep-th/0111030,
  title  = {A Cyclic Model of the Universe},
  author = {Paul J. Steinhardt and Neil Turok},
  journal= {arXiv preprint arXiv:hep-th/0111030},
  year   = {2009}
}

Comments

15 pages, 1 figure, revisions as published