Multiple Field Scalar-Tensor Theories of Gravity and Cosmology
General Relativity and Quantum Cosmology
2010-11-01 v1
Abstract
We consider multiple scalar fields coupled to gravity, with special attention given to two-field theories. First, the conditions necessary for these theories to meet solar system tests are given. Next, we investigate the cosmological evolution of the fields to see if these conditions can be met. Solutions are found in the dust era, as well as radiation and cosmological constant dominated epochs. The possibility of inflation in these theories is discussed. While power law growth of the scalar fields can yield the appropriate conditions to meet solar system constraints, these solutions are unstable.
Cite
@article{arxiv.gr-qc/9401033,
title = {Multiple Field Scalar-Tensor Theories of Gravity and Cosmology},
author = {Andrew L. Berkin and Ronald W. Hellings},
journal= {arXiv preprint arXiv:gr-qc/9401033},
year = {2010}
}
Comments
17 pages