A Cosmologic Model Based on the Equivalence of Expansion and Light Retardation

TL;DR

This paper proposes a cosmological model where light waves do not scale with the universe's expansion, using variable fundamental constants to explain redshift and address standard cosmology problems.

Contribution

It introduces a model based on a generalized equivalence principle with variable constants, offering alternative explanations for key cosmological phenomena.

Findings

Explains cosmological redshift without scaling of light waves

Addresses horizon, flatness, and accelerated expansion problems

Aligns thermal evolution with standard cosmology through variable constants

Abstract

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.