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- Title
Generation of CMB and cosmological constant via bulk viscosity.
- Authors
Kolekar, Sanved; Shankaranarayanan, S.; Chitre, S. M.
- Abstract
A simple model of uniformly expanding, homogeneous Universe with a bulk viscosity is studied wherein the inflationary density decays due to viscous dissipation during the expansion phase of the Universe. The model is shown to generate the cosmic microwave background radiation. We also demonstrate that, at late times, the inflationary density asymptotically approaches a small finite constant value.
- Subjects
BULK viscosity; COSMOLOGICAL constant; COSMIC background radiation
- Publication
General Relativity & Gravitation, 2020, Vol 52, Issue 10, pN.PAG
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-020-02749-0