Inhomogeneous viscous fluids for inflation

Abstract

In this paper, we investigate inhomogeneous viscous fluid cosmology for inflation. Several toy models are presented in the attempt to analyze how inflation can be realized according with cosmological data by making use of an inhomogeneous EoS parameter for the fluid and/or by introducing a viscosity to have a graceful exit from inflation. The results will be compared with the ones of scalar field representation and discussed. We will pay attention on the possibility to recover the reheating and therefore the Friedmann universe.

14 pages, final version, accepted in Astrophys. Space Sci

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Cited by in corpus (10)

• Inflation in a viscous fluid model
• Phase Space Analysis of the Accelerating Multi-fluid Universe
• Inflationary universe in terms of a van der Waals viscous fluid
• Reconstruction of Inflation Models
• Viscous Coupled Fluids in Inflationary Cosmology
• Dissipative Universe-Inflation with Soft Singularity
• Inflationary Universe with a Viscous Fluid Avoiding Self-Reproduction
• Inflation and Bounce from Classical and Loop Quantum Cosmology Imperfect Fluids
• A generalized $\Lambda$CDM model with parameterized Hubble parameter in particle creation, viscous and $f(R)$ model framework
• Inhomogeneous fluids for warm inflation