Nonlinear Effects of Gravity in Cosmology

TL;DR

This paper explores nonlinear gravitational effects in cosmology, proposing alternative explanations for dark matter, dark energy, and cosmic structure, potentially resolving key cosmological puzzles without new particles.

Contribution

It introduces nonlinear gravitational effects that could explain dark matter, dark energy, and cosmic homogeneity, challenging standard cosmological models.

Findings

Potential to eliminate need for dark matter and dark energy

Proposes gravitational matter-creation mechanisms

Suggests an effective cutoff of gravity at cosmic void scales

Abstract

We consider some nonlinear effects of gravity in cosmology. Possible physically interesting consequences include: non-requirement of dark matter and dark energy, asymmetric gravitational matter-creation, emergent homogeneity/isotropy & asymptotic flatness, resolution of "cosmic coincidence" Omega_m \sim Omega_lambda, effective cutoff of gravitational interaction at the scale of cosmic voids.