Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1995-08-08
Int.J.Mod.Phys. D5 (1996) 313-318
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
8 pages, LaTeX. To be published in International Journal of Modern Physics D
Scientific paper
10.1142/S0218271896000217
We investigate cosmological models with a free scalar field and a viscous
fluid. We find exact solutions for a linear and nonlinear viscosity pressure.
Both yield singular and bouncing solutions. In the first regime, a de Sitter
stage is asymptotically stable, while in the second case we find power-law
evolutions for vanishing cosmological constant.
Chimento Luis P.
Jakubi Alejandro S.
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