Dynamics of Generalized Assisted Inflation
General Relativity and Quantum Cosmology
2009-11-11 v1 High Energy Physics - Theory
Abstract
We study the dynamics of multiple scalar fields and a barotropic fluid in an FLRW-universe. The scalar potential is a sum of exponentials. All critical points are constructed and these include scaling and de Sitter solutions. A stability analysis of the critical points is performed for generalized assisted inflation, which is an extension of assisted inflation where the fields mutually interact. Effects in generalized assisted inflation which differ from assisted inflation are emphasized. One such a difference is that an (inflationary) attractor can exist if some of the exponential terms in the potential are negative.
Keywords
Cite
@article{arxiv.gr-qc/0602077,
title = {Dynamics of Generalized Assisted Inflation},
author = {Jelle Hartong and André Ploegh and Thomas Van Riet and Dennis B. Westra},
journal= {arXiv preprint arXiv:gr-qc/0602077},
year = {2009}
}
Comments
27 pages