Tachyon-Chaplygin inflationary universe model

2008/01/19 by Sérgio del Campo, Sergio del Campo, Ramón Herrera +1 · 2 citations
Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Chaplygin gas #Classical mechanics #Context (archaeology) #Cosmology #Cosmology and Gravitation Theories #Dark energy #Galaxies: Formation, Evolution, Phenomena #Inflation (cosmology) #Mathematical physics #Physics #Tachyon #Theoretical physics #Universe #astro-ph #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.1016/j.physletb.2008.01.016

published as Phys.Lett.B660:282-286,2008 · 13 pages, 1 figure, Accepted by Physics Letters B

openalex publication_date 2008/01/19 · arxiv created 2008/01/21 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Tachyonic inflationary universe model in the context of a Chaplygin gas equation of state is studied. General conditions for this model to be realizable are discussed. By using an effective exponential potential we describe in great details the characteristic of the inflationary universe model. The parameters of the model are restricted by using recent astronomical observations.

Citations

• Generalized Chaplygin gas and cosmic microwave background radiation constraints
• The statistical significance of the low cosmic microwave background mulitipoles
• Curvaton reheating allows a TeV Hubble scale in non-oscillatory inflation
• Inflation dynamics and reheating
• Generating the curvature perturbation without an inflaton
• Cosmology for Grand Unified Theories with Radiatively Induced Symmetry Breaking
• Some exact results on tachyon condensation in string field theory
• Supernova constraints on alternative models to dark energy
• Caustics in Tachyon Matter and Other Born-Infeld Scalars
• Field Theory of Tachyon Matter
• Curvaton reheating in non-oscillatory inflationary models
• Generalized Chaplygin Gas Models Tested with Type Ia Supernovae
• An Alternative to Compactification
• Generalized Chaplygin gas, accelerated expansion, and dark-energy-matter unification
• First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Determination of Cosmological Parameters
• Three‐YearWilkinson Microwave Anisotropy Probe(WMAP) Observations: Implications for Cosmology
• Rolling Tachyon

Cited by

• Inflationary weak anisotropic model with general dissipation coefficient
• Curvaton reheating in non-minimal derivative coupling to gravity: NO models