Hilbertian Repulsive Effect and Dark Energy

TL;DR

This paper explores a historical gravitational effect identified by Hilbert that could explain the universe's accelerated expansion without invoking dark energy or a cosmological constant.

Contribution

It revisits Hilbert's repulsive gravitational effect and discusses its potential role in explaining cosmic acceleration.

Findings

Hilbert's repulsive effect may account for accelerated expansion

The effect offers an alternative to dark energy models

Historical gravitational effects can have modern cosmological implications

Abstract

A repulsive gravitational effect of general relativity (without cosmological term), which was pointed out by Hilbert many years ago, could play a decisive role in the explanation of the observational data concerning the accelerated expansion of the universe.