Dilatons in string cosmology

Details Dilatons in string cosmology Dilatons in string cosmology

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aph.....1..185k&link_type=abstract

Astroparticle Physics, Volume 1, Issue 2, p. 185-193.

Physics

49

Scientific paper

We consider the evolution of the dilaton in a Friedmann-Robertson-Walker background by numerically integrating the equations of motion as determined by the low-energy expansion of the string theory action. We find that the dilaton may be fixed by either self-interaction terms providing a dilaton mass or decoupling in a radiation dominated Universe. We also comment on conditions applicable to an exponentially expanding phase.

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