Study of Several Potentials as Scalar Field Dark Matter Candidates
- Departamento de Fisica, Centro de Investigacion y de Estudios Avanzados del IPN, A.P. 14-740, 07000 Mexico D.F. (Mexico)
- Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, AP 70-543, 04510 D.F. (Mexico)
In this work we study several scalar field potentials as a plausible candidate to be the dark matter in the universe. The main idea is the following; if the scalar field is an ultralight boson particle, it condensates like a Bose-Einstein system at very early times and forms the basic structure of the Universe. Real scalar fields collapse in equilibrium configurations which oscillate in space-time (oscillatons). The cosmological behavior of the field equations are solved using the dynamical system formalism. We use the current cosmological parameters as constraints for the free parameters of the scalar field potentials. We are able to reproduce very well the cosmological predictions of the standard {lambda}CDM model with some scalar field potentials. Therefore, scalar field dark matter seems to be a good alternative to be the nature of the dark matter of the universe.
- OSTI ID:
- 21254932
- Journal Information:
- AIP Conference Proceedings, Vol. 1083, Issue 1; Conference: 3. international meeting on gravitation and cosmology, Morelia, Michoacan (Mexico), 26-30 May 2008; Other Information: DOI: 10.1063/1.3058564; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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