A STRING SCENARIO FOR INFLATIONARY COSMOLOGY
- ELLIS, JOHN Theory Division, CERN, CH-1211, Geneva, Switzerland
- NANOPOULOS, D.V. Theory Division, CERN, CH-1211, Geneva, Switzerland
- MAVROMATOS, N.E. Laboratoire de Physique Thèorique ENSLAPP (URA 14–36 du CNRS, associeè à l’ E.N.S de Lyon, et au LAPP (IN2P3-CNRS) d’Annecy-le-Vieux), Chemin de Bellevue, BP 110, F-74941 Annecy-le-Vieux Cedex, France
- 2011-11-21
Published in:
- Modern Physics Letters A. - World Scientific Pub Co Pte Lt. - 1995, vol. 10, no. 23, p. 1685-1698
English
We describe a scenario for inflation in the framework of noncritical string theory, which does not employ an inflaton field. There is an exponential expansion of the volume of the Universe, induced by enormous entropy production in the early stages of cosmological evolution. This is associated with the loss of information carried by global string modes that cross the particle horizon. It is the same loss of information that induces irreversible time flow when target time is identified with the worldsheet Liouville mode. The resulting scenario for inflation is described by a string analog of the Fokker-Planck equation that incorporates diffusion and dissipative effects. Cosmological density perturbations are naturally small.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1142/s0217732395001800
- ISSN 0217-7323
- Persistent URL
- https://sonar.ch/global/documents/249103
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