The Acceleration of the universe, a challenge for string theory

Apr, 2001
12 pages
Published in:
  • JHEP 07 (2001) 003
e-Print:
Report number:
  • UTTG-07-01

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Abstract:
Recent astronomical observations indicate that the universe is accelerating. We argue that generic quintessence models that accommodate the present day acceleration tend to accelerate eternally. As a consequence the resulting spacetimes exhibit event horizons. Hence, quintessence poses the same problems for string theory as asymptotic de Sitter spaces.
  • astrophysics: acceleration
  • string model
  • quintessence
  • cosmological constant
  • potential
  • asymptotic behavior
  • space-time
  • horizon