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arXiv · 2203.02467

Constant-roll, cosmic acceleration, and massive neutrinos

V. Anari·H. Mohseni Sadjadi
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Abstract

We propose a model to describe the late-time cosmic acceleration in the context of the constant-roll model. By considering a coupling between massive neutrinos and the quintessence, the onset of evolution of the quintessence is related to the neutrinos' behavior. When the neutrinos become non-relativistic, the dark energy density increases from zero and results in late-time cosmic acceleration alleviating the coincidence problem. The quintessence potential is such that it evolves under the constant-roll condition giving rise to persistent late-time acceleration.

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V. Anari, H. Mohseni Sadjadi. 2022-03-04. Constant-roll, cosmic acceleration, and massive neutrinos. https://doi.org/10.1088/1475-7516/2022/07/043

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