Solving for the dynamics of the universe
Classical Physics
2009-10-31 v1 Astrophysics
General Relativity and Quantum Cosmology
Abstract
A new method of solving the Einstein-Friedmann dynamical equations of a spatially homogeneous and isotropic universe is presented. The method is applicable when the equation of state of the material content assumes the form P=(g -1) rho, g = constant. The solution for the expansion factor is commonly given only for g = 0, 1 and 4/3 when the curvature index K is 1 or -1. The proposed procedure is valid for general g and K and it allows for ease of derivation of the solutions. This alternative method is useful pedagogically to introduce basic cosmology.
Keywords
Cite
@article{arxiv.physics/9901006,
title = {Solving for the dynamics of the universe},
author = {Valerio Faraoni},
journal= {arXiv preprint arXiv:physics/9901006},
year = {2009}
}
Comments
8 pages, LaTeX, no figures. To appear in American Journal of Physics