Recent developments in string cosmology

Details Recent developments in string cosmology Recent developments in string cosmology

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..476...43c&link_type=abstract

Conference on 3K cosmology. AIP Conference Proceedings, Volume 476, pp. 43-52 (1999).

Mathematics

Logic

Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

I discuss some recent developments in string cosmology. The first is based on the low energy string action in a pre big bang cosmology in which the dynamics of the massless fields (dilation, graviton, moduli and axion) play a pivotal role, leading to a period of inflation and the possibility of a spectrum of near scale invariant density perturbations. The second is a method to dynamically stabilize the dilaton through the presence of non-perturbative gaugino condensates in a supergravity action. It relies on the presence of exponential potentials which lead to cosmological scaling solutions.

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