On the Cosmology and Symmetry of Dilaton-Axion Gravity

Details On the Cosmology and Symmetry of Dilaton-Axion Gravity On the Cosmology and Symmetry of Dilaton-Axion Gravity

1996-09-27

arxiv.org/abs/gr-qc/9609063v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, latex, 2 figures available on request

Scientific paper

A global O$(2,2)$ symmetry is found in the Brans-Dicke theory of gravity when the dilaton is coupled to axion and moduli fields. The symmetry is broken if a cosmological constant is introduced. Within the class of spatially homogeneous Bianchi cosmologies, only the type I and V models respect the symmetry. Isotropic cosmological solutions are found for arbitrary spatial curvature. In the region of parameter space relevant to the pre-big bang scenario, the interplay between the scalar fields results in a bouncing cosmology.

Affiliated with

Also associated with

No associations

Rating

On the Cosmology and Symmetry of Dilaton-Axion Gravity 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 On the Cosmology and Symmetry of Dilaton-Axion Gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Cosmology and Symmetry of Dilaton-Axion Gravity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-245516