The confining heterotic brane gas: a non-inflationary solution to the entropy and horizon problems of standard cosmology

  title={The confining heterotic brane gas: a non-inflationary solution to the entropy and horizon problems of standard cosmology},
  author={Robert H. Brandenberger and Natalia Shuhmaher},
  journal={Journal of High Energy Physics},
We propose a mechanism for solving the horizon and entropy problems of standard cosmology which does not make use of cosmological inflation. Crucial ingredients of our scenario are brane gases, extra dimensions, and a confining potential due to string gas effects which becomes dominant at string-scale brane separations. The initial conditions are taken to be a statistically homogeneous and isotropic hot brane gas in a space in which all spatial dimensions are of string scale. The extra… 
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