C-field cosmological model with variable G and bulk viscosity in FRW space-time.
202110 pages
Published in:
- J. Rajasthan Acad. Phys. Sci. 20 (2021) 3-4, 139-148
- Published: 2021
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Abstract: (FIZ Karlsruhe)
Cosmological models with variable bulk viscosity and gravitational constant in C-field cosmology for FRW space-time are investigated. To find the deterministic model of the universe, we assume that G=Rn and discussed for n=−1, −2, R being scalar factor. In both the cases, creation field (C) increases with time, G (gravitational constant) decreases with time. For n=−1, ρ (matter density) decreases with time and for n=−2, ρ (matter density) is constant. These results match with the astronomical observations and explained.- C-field cosmology
- variable gravitational constant
- variable bulk viscosity
- FRW spacetime
- 83F05
- 85A40
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