Axionic instantons and the creation of expanding universes

Details Axionic instantons and the creation of expanding universes Axionic instantons and the creation of expanding universes

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nuphb.329..519t&link_type=abstract

Nuclear Physics B, Volume 329, Issue 2, p. 519-532.

Physics

Nuclear Physics

4

Scientific paper

In a class of models of scalar matter coupled to N = 1 supergravity, we investigate the existence of gravitational instantons that correspond to the creation of expanding universes. Expressing the derivatively coupled pseudoscalar field in terms of a second rank antisymmetric tensor field (axion), we show that, under mild assumptions about the scalar potential, the theory possesses axion-induced gravitational instanton solutions with the desired interpretation. The assumptions made can be met in the effective four-dimensional theory obtained in a particular compactification of the zero-slope limit of the ten-dimensional superstring theory. Such a system offers an appealing framework for the natural realization of the recent idea that coupling constants, including the cosmological constant, are determined by universal dynamics.

Affiliated with

Also associated with

No associations

Rating

Axionic instantons and the creation of expanding universes 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 Axionic instantons and the creation of expanding universes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Axionic instantons and the creation of expanding universes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1564177