Inflation from superstrings.

Details Inflation from superstrings. Inflation from superstrings.

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ijmpd...5..541d&link_type=abstract

International Journal of Modern Physics D, Vol. 5, No. 5, p. 541 - 565

Physics

2

Superstrings: Inflationary Universe

Scientific paper

The authors investigate the possibility of obtaining inflationary solutions from a low energy Lagrangian coming from superstrings. They show that in a class of models where supersymmetry breaking occurs via gaugino condensation, the dilaton and the moduli fields can be stabilised in a way that enables the use of chiral matter fields in order to obtain enough e-folds of inflation. They identify a subclass of Kahler potentials and a certain region of the parameter space of the chiral and moduli fields that may lead to enough inflation. The conditions derived for inflation due to chiral fields are generic and apply also in schemes where the dilaton and moduli fields may be frozen in alternative ways. Demanding that the potential terms associated with the chiral fields do not spoil the dilaton and moduli minimization under the specific scheme that is used to freeze the dilaton, leads to severe constraints on the magnitude of the density fluctuations.

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