Cosmological phase space analysis of the F (X) - V (phi) scalar field and bouncing solutions

Details Cosmological phase space analysis of the F (X) - V (phi) scalar field and bouncing solutions Cosmological phase space analysis of the F (X) - V (phi) scalar field and bouncing solutions

2012-04-16

arxiv.org/abs/1204.3631v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, 4 figures

Scientific paper

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.

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