The Ekpyrotic Universe : Colliding Branes and the Origin of the Hot Big Bang

@inproceedings{Khoury2001TheEU,
  title={The Ekpyrotic Universe : Colliding Branes and the Origin of the Hot Big Bang},
  author={Justin Khoury and Burt A. Ovrut and Paul J. Steinhardt and Neil Turok},
  year={2001}
}
We propose a cosmological scenario in which the hot big bang universe is produced by the collision of a brane in the bulk space with a bounding orbifold plane, beginning from an otherwise cold, vacuous, static universe. The model addresses the cosmological horizon, flatness and monopole problems and generates a nearly scale-invariant spectrum of density perturbations without invoking superluminal expansion (inflation). The scenario relies, instead, on physical phenomena that arise naturally in… CONTINUE READING
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