Cosmology based on entropy

TL;DR

This paper reviews a cosmological model that synthesizes gravity and thermodynamics, aiming to address fundamental problems without invoking unknown components like dark energy or dark matter.

Contribution

It presents the conceptual foundations of an entropic cosmology model that integrates thermodynamics with gravity, avoiding the need for dark components.

Findings

Thermodynamic interpretation of Einstein's equations supports gravity's thermodynamic nature.

The model offers a phenomenological approach to cosmology without dark energy or dark matter.

Addresses conceptual issues in standard cosmology through entropy-based principles.

Abstract

At present, there is practically no doubt that general relativity is closely related to gravity. Moreover, after the work of Jacobson, Padmanabhan and others, it became clear that a thermodynamic interpretation of Einstein's relativistic equations is possible. On the other hand, we are witnessing the conceptual problems of the SCM (the problem of the cosmological constant, the problem of coincidences) and many years of futile attempts to directly fix the main components of the model (dark energy and dark matter). The combination of these two factors gave rise to a natural desire, at least at the phenomenological level, to build a cosmological model that represents the synthesis of gravity and thermodynamics and does not include components of an unknown nature. It is this model\`uentropic cosmology\`uthat is considered in this review. We have set as our goal, omitting the details that can be found in the references given, to present the conceptual foundations of the model.