Hyperbolic space cosmologies

  title={Hyperbolic space cosmologies},
  author={Chiang-Mei Chen and P. M. Ho and Ishwaree P. Neupane and Nobuyoshi Ohta and John E. Wang},
  journal={Journal of High Energy Physics},
We present a systematic study of accelerating cosmologies obtained from M/string theory compactifications of hyperbolic spaces with time-varying volume. A set of vacuum solutions where the internal space is a product of hyperbolic manifolds is found to give qualitatively the same accelerating four-dimensional FLRW universe behavior as a single hyperbolic space. We also examine the possibility that our universe is a hyperbolic space and provide exact Milne type solutions, as well as intersecting… 

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  • 2003
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