Quintessence Dark Matter

TL;DR

This paper proposes a quintessence dark matter model, particularly exponential quintessence, to explain the evolution of dark matter over cosmic time, supported by recent cosmological observations indicating dynamical dark matter and dark energy.

Contribution

It introduces a novel quintessence dark matter model, especially exponential quintessence, to account for dark matter evolution, building on recent observational evidence.

Findings

Exponential quintessence likely explains dark matter evolution.

Recent observations show signals of dynamical dark matter and dark energy coexistence.

The model aligns with current cosmological data.

Abstract

Recently, we give the robust $\sim2\,\sigma$ evidences of dynamical dark matter and beyond $2\,\sigma$ signals of the coexistence of dynamical dark matter and dynamical dark energy using current cosmological observations [1]. Here we propose the quintessence dark matter model to explain the evolution of dark matter over time on cosmic scales. Interestingly, we find that the exponential quintessence is likely the origin of such an evolution.