A Cyclic Model of the Universe

@article{Steinhardt2001ACM,
  title={A Cyclic Model of the Universe},
  author={Paul J. Steinhardt and Neil Turok},
  journal={Science},
  year={2001},
  volume={296},
  pages={1436 - 1439}
}
We propose a cosmological model in which the universe undergoes an endless sequence of cosmic epochs that begin with a “bang” and end in a “crunch.” Temperature and density at the transition remain finite. Instead of having an inflationary epoch, each cycle includes a period of slow accelerated expansion (as recently observed) followed by contraction that produces the homogeneity, flatness, and energy needed to begin the next cycle. 
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