Standard cosmology delayed
Journal Article
·
· Journal of Cosmology and Astroparticle Physics
- Department of Physics and Astrophysics, University of Delhi, Delhi 110007 (India)
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067 (India)
The introduction of a delay in the Friedmann equation of cosmological evolution is shown to result in the very early universe undergoing the necessary accelerated expansion in the usual radiation (or matter) dominated phase. Occurring even without a violation of the strong energy condition, this expansion slows down naturally to go over to the decelerated phase, namely the standard Hubble expansion. This may obviate the need for a scalar field driven inflationary epoch.
- OSTI ID:
- 22279750
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 02 Vol. 2012; ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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