Back reaction of a long range force on a Friedmann-Robertson-Walker background
arXiv:hep-ph/0006067 · doi:10.1103/PhysRevD.62.103516
Abstract
It is possible that there may exist long-range forces in addition to gravity. In this paper we construct a simple model for such a force based on exchange of a massless scalar field and analyze its effect on the evolution of a homogeneous Friedmann-Robertson-Walker cosmology. The presence of such an interaction leads to an equation of state characterized by positive pressure and to resonant particle production similar to that observed in preheating scenarios.
14 pages, 6 color Postscript figures, LaTeX
References in corpus (8)
- Observational evidence for self-interacting cold dark matter
- New Dark Matter Physics: Clues from Halo Structure
- Quintessence and Scalar Dark Matter in the Universe
- Self-interacting Dark Matter and Invisibly Decaying Higgs
- Scalar Field as Dark Matter in the Universe
- Self-interacting Warm Dark Matter
- A tracker solution to the cold dark matter cosmic coincidence problem
- What if Dark matter is Bosonic and self-interacting