Initial Conditions for Hybrid Inflation

Details Initial Conditions for Hybrid Inflation Initial Conditions for Hybrid Inflation

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aard.conf...45m&link_type=abstract

ASTRONOMY AND ASTROPHYSICS Recent Developments. Proceedings of the 10th Portuguese Meeting. Held 27-28 July 2000 in CENTRA, Lisb

Astronomy and Astrophysics

Astrophysics

Scientific paper

In hybrid inflation models, typically only a tiny fraction of possible initial conditions give rise to successful inflation, even if one assumes spatial homogeneity. We analyze some possible solutions to this initial conditions problem, namely assisted hybrid inflation and hybrid inflation on the brane. While the former is successful in achieving the onset of inflation for a wide range of initial conditions, it lacks sound physical motivation at present. On the other hand, in the context of the presently much discussed brane cosmology, extra friction terms appear in the Friedmann equation which solve this initial conditions problem in a natural way.

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