Curvature in causal BD-type inflationary cosmology

2004/07/15 by Francisco Pena, Francisco Peña, Mauricio Cataldo +2
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #gr-qc

paper · pdf · doi:10.1007/s10714-005-0064-5

published as Gen.Rel.Grav.37:803-811,2005 · 11 pages, revtex 4. For a festschrift honoring Alberto Garcia. To be publishen in Gen. Rel. Grav

arxiv created 2004/07/15 · openalex publication_date 2005/04/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study a closed model of the universe filled with viscous fluid and quintessence matter components in a Brans-Dicke type cosmological model. The dynamical equations imply that the universe may look like an accelerated flat Friedmann-Robertson-Walker universe at low redshift. We consider here dissipative processes which follow a causal thermodynamics. The theory is applied to viscous fluid inflation, where accepted values for the total entropy in the observable universe is obtained.

Citations

• Causal Thermodynamics in Relativity
• Measurements of Ω and Λ from 42 High‐Redshift Supernovae
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Nonstationary irreversible thermodynamics: A causal relativistic theory
• The Thermodynamics of Irreversible Processes. III. Relativistic Theory of the Simple Fluid