Interactions in the dark sector of the Universe

TL;DR

This paper reviews models where dark matter and dark energy interact non-gravitationally, affecting the Universe's evolution and potentially deviating from the standard $\\Lambda$CDM predictions.

Contribution

It provides a comprehensive overview of recent models with dark sector interactions, highlighting their impact on cosmological dynamics.

Findings

Dark sector interactions can alter the Universe's future evolution.

Models with dark matter-dark energy couplings can deviate from $\\Lambda$CDM predictions.

Review of recent theoretical developments in dark sector interactions.

Abstract

Interactions inside the cosmological dark sector influence the cosmological dynamics. As a consequence, the future evolution of the Universe may be different from that predicted by the $\Lambda$CDM model. We review main features of several recently studied models with nongravitational couplings between dark matter and dark energy.