Towards a covariant model for cosmic self-acceleration

2007/06/30 by Alexey S. Koshelev, Alexey S Koshelev, Theodore N. Tomaras +1 · 5 citations
Physics and Astronomy · #COSMIC cancer database #Cosmology and Gravitation Theories #Coupling (piping) #Covariant transformation #Field (mathematics) #Gauge covariant derivative #Instability #Noncommutative and Quantum Gravity Theories #Particle physics theoretical and experimental studies #Scalar (mathematics) #Scalar field #astro-ph #hep-ph #hep-th

paper · pdf · doi:10.1088/1126-6708/2007/10/012

published in Journal of High Energy Physics 2007(10), 012 (Springer Nature) · 10 pages, no figures; v2: version published in JHEP

openalex publication_date 2007/10/02 · arxiv created 2007/10/09 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

An explicitly covariant formulation is presented of a modified DGP scenario proposed recently [1], to avoid the instability of the self-accelerating branch. It is based on the introduction of a bulk scalar field with appropriate non-minimal coupling to the bulk Einstein-Hilbert term. The method is general and may be applied to other models as well.

Citations

• Measurements of Ω and Λ from 42 High‐Redshift Supernovae
• More on ghosts in the Dvali-Gabadaze-Porrati model
• Self-accelerating warped braneworlds
• Perturbations of the self-accelerated Universe
• Large Mass Hierarchy from a Small Extra Dimension
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Moduli fields and brane tensions: Generalizing the junction conditions
• Cosmological evolution with brane-bulk energy exchange
• An Alternative to Compactification
• The Hierarchy Problem and New Dimensions at a Millimeter
• First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Determination of Cosmological Parameters
• Three‐YearWilkinson Microwave Anisotropy Probe(WMAP) Observations: Implications for Cosmology