Dark matter in models of string cosmology Academic Article uri icon


  • The origin of dark matter in the universe may be weakly interacting scalar particles produced by amplification of quantum fluctuations during a period of dilaton-driven inflation. We present two interesting cases, the case of small fluctuations, and the resulting nonthermal spectrum and, the case of large fluctuations of a field with a periodic potential, the QCD axion.

publication date

  • January 1, 1999