Cosmology of Nonlinear Oscillations
arXiv:astro-ph/0305096 · doi:10.1016/j.physletb.2003.05.001
Abstract
The nonlinear oscillations of a scalar field are shown to have cosmological equations of state with ranging from . We investigate the possibility that the dark energy is due to such oscillations.
5 pages, latex. References added; to appear in PLB