An alternative explanation of the conflict between 1/R gravity and solar system tests

TL;DR

This paper proposes that the conflict between 1/R gravity and solar system tests can be avoided if the 1/R term is treated as a correction in the high curvature limit, offering an alternative explanation for its viability.

Contribution

It introduces a new perspective on 1/R gravity by treating it as a correction term in high curvature regimes, potentially reconciling it with solar system observations.

Findings

1/R gravity can be consistent with solar system tests when viewed as a high curvature correction.

The approach offers an alternative explanation for the compatibility of 1/R gravity with local tests.

This perspective may revive the viability of 1/R gravity as a model for cosmic acceleration.

Abstract

Recently the 1/R gravity has been proposed in order to explain the accelerated expansion of the universe. However, it was argued that the 1/R gravity conflicts with solar system tests. While this statement is true if one views the 1/R gravity as an effective theory, we find that this difficulty might be avoided if one treats the 1/R term as a correction to the scalar curvature term in the high curvature limit $R \gg \mu^2$.