Published February 1, 2012
| Version v1
Journal article
Standard cosmology delayed
- 1. Department of Physics and Astrophysics, University of Delhi, Delhi 110007 (India)
- 2. School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067 (India)
- 3. Centre for Theoretical Physics, Jamia Millia Islamia, New Delhi 110025 (India)
Description
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
Availability note (English)
Available from http://dx.doi.org/10.1088/1475-7516/2012/02/046Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Cosmology and Astroparticle Physics
- Journal Volume
- 2012
- Journal Issue
- 02
- Journal Page Range
- p. 046
- ISSN
- 1475-7516
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45101107
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- COSMOLOGY; FIELD EQUATIONS; INFLATIONARY UNIVERSE; SCALAR FIELDS; UNIVERSE
- Descriptors DEC
- COSMOLOGICAL MODELS; EQUATIONS; MATHEMATICAL MODELS