Cosmological phase space analysis of the F (X) - V (phi) scalar field and bouncing solutions
General Relativity and Quantum Cosmology
2015-03-20 v3 Cosmology and Nongalactic Astrophysics
Abstract
We analyze the dynamical system defined by a universe filled with a barotropic fluid plus a scalar field with modified kinetic term of the form L = F (X) - V (phi). After a suitable choice of variables that allows us to study the phase space of the system we obtain the critical points and their stability. We find that they reduce to the ones defined for the canonical case when F (X) = X. We also study the field energy conditions to have a nonsingular bounce.
Keywords
Cite
@article{arxiv.1204.3631,
title = {Cosmological phase space analysis of the F (X) - V (phi) scalar field and bouncing solutions},
author = {Josue De-Santiago and Jorge L. Cervantes-Cota and David Wands},
journal= {arXiv preprint arXiv:1204.3631},
year = {2015}
}
Comments
13 pages, 11 figures, v3 appendix added in order to match the published version in Phys. Rev. D