Cosmological string theories and discrete inflation

Details Cosmological string theories and discrete inflation Cosmological string theories and discrete inflation

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phlb..211..393a&link_type=abstract

Physics Letters B, Volume 211, Issue 4, p. 393-399.

Physics

228

Scientific paper

We catalogue string theories which can be interpreted as Robertson-Walker cosmologies. In the absence of dynamic matter, we find only two discrete classes of such theories: static Einstein universes and linearly expanding Milne universes. These correspond to conformal field theories on group manifolds, with the sizes of the Einstein universes related to the level of the Kac-Moody algebra, and Milne universes also offering a geometrical interpretation of a Goddard-Kent-Olive coset construction. String loop effects or non-perturbative phenomena can generate a non-trivial dilaton potential, in which case string theory admits an inflationary cosmology whose Hubble constant is related to the gauge coupling. Presently known conformal field theories permit only a discrete set of values for the Hubble constant, all of which are O(1) in Planck units.

Affiliated with

Also associated with

No associations

Rating

Cosmological string theories and discrete inflation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cosmological string theories and discrete inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmological string theories and discrete inflation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-915559