Entropy of the Universe

TL;DR

This paper explores the entropy of the Universe within Einstein's field equations, revealing that entropy scales with the radius to the power of 3/2, indicating growth contrary to standard cosmological models.

Contribution

It introduces a new thermodynamical and cosmological weak field limit of Einstein's equations showing a different entropy dependence on the Universe's radius.

Findings

Entropy scales as R^(3/2) in the weak field limit.

Entropy increases as the Universe expands, contrary to standard predictions.

Provides a new perspective on the thermodynamics of the Universe.

Abstract

After a discussion on several limiting cases where General Relativity turns into less sophisticated theories, we find that in the correct thermodynamical and cosmological weak field limit of Einstein's field equations the entropy of the Universe is R^(3/2) -- dependent, where R stands for the radius of the causally related Universe. Thus, entropy grows in the Universe, contrary to Standard Cosmology prediction.