2011/08/31 by V. Emelyanov, V. EMELYANOV, F. R. Klinkhamer +1 · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #Relativity and Gravitational Theory #gr-qc #hep-th
paper · pdf · doi:10.1142/s0218271812500253
published as Int. J. Mod. Phys. D 21 (2012) 1250025 · 12 pages, v5: published version (but with a small change in the Note Added)
openalex publication_date 2012/01/19 · arxiv created 2012/04/12 · arxiv updated 2012/04/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A special model of a massless-vector-field is presented, which has an extra modified-gravity-type interaction term in the action. The cosmology of the model is studied with standard noninteracting relativistic matter added. It is found that this cosmology can have an early phase where the vector-field starts to compensate a (Planck-scale) cosmological constant and a late Friedmann–Robertson–Walker (FRW) phase where the relativistic-matter energy density dominates the dynamic vacuum energy density.