2002/11/24 by Peter Huber, Peter M. Huber, Huber, Peter
Engineering · Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Material Science and Thermodynamics #Relativity and Gravitational Theory #gr-qc
paper · pdf · doi:10.48550/arxiv.gr-qc/0211077
31 pages
arxiv created 2002/11/24 · openalex publication_date 2002/11/24 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Proceeding from a homogeneous and isotropic Friedmann universe a conceptional problem concerning light propagation in an expanding universe is brought up. As a possible solution of this problem it is suggested that light waves do not scale with R(t). With the aid of a Generalized Equivalence Principle a cosmologic model with variable "constants" c, H, and G is constructed. It is shown that with an appropriate variation of the Boltzmann "constant" k the thermal evolution of the universe is similar to the standard model. It is further shown that this model explains the cosmological redshift as well as certain problems of the standard model (horizon, flatness, accelerated expansion of the universe). PACS numbers: 98.80.Bp, 98.80.Hw, 04.20.Cv. Keywords: cosmology, velocity of light, expansion.