
TL;DR
This paper proposes a unified cosmological model involving scalar and pseudo-scalar fields to explain Dark Energy and Dark Matter, offering insights into the Universe's evolution and matter-antimatter asymmetry.
Contribution
It introduces a simple unified model of the Dark Sector using scalar and pseudo-scalar fields, linking Dark Energy and Dark Matter within a single framework.
Findings
Predicts late-time Universe evolution consistent with observations
Suggests implications for matter-antimatter asymmetry
Provides a theoretical basis for Dark Energy and Dark Matter connection
Abstract
After recalling some puzzles in cosmology and briefly reviewing the Friedmann-Lema\^itre cosmos a simple unified model of the ``Dark Sector'' is described. This model involves a scalar field and a pseudo-scalar axion field that give rise to Dark Energy in the form of ``quintessence'' and to ``fuzzy'' Dark Matter, respectively. Predictions of the model concerning the late-time evolution of the Universe and possible implications for the problem of the observed Matter-Antimatter Asymmetry in the Universe are sketched.
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