R
Ramón Herrera
Researcher at Pontifical Catholic University of Valparaíso
Publications - 141
Citations - 3524
Ramón Herrera is an academic researcher from Pontifical Catholic University of Valparaíso. The author has contributed to research in topics: Inflation (cosmology) & Scalar field. The author has an hindex of 35, co-authored 135 publications receiving 3191 citations. Previous affiliations of Ramón Herrera include Valparaiso University.
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Interacting models may be key to solve the cosmic coincidence problem
TL;DR: In this article, it is argued that cosmological models that feature a flow of energy from dark energy to dark matter may solve the coincidence problem of late acceleration (i.e., why the energy densities of both components are of the same order precisely today).
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Toward a solution of the coincidence problem
TL;DR: In this article, the authors argue that this problem may someday be solved by expressing the Hubble expansion rate as a function of the ratio of densities (dark matter/dark energy) and observationally determining the said rate in terms of the redshift.
Journal ArticleDOI
Interacting models may be key to solve the cosmic coincidence problem
TL;DR: In this article, it is argued that cosmological models that feature a flow of energy from dark energy to dark matter may solve the coincidence problem of late acceleration (i.e., "why the energy densities of both components are of the same order precisely today?").
Journal ArticleDOI
Interacting models of soft coincidence
TL;DR: In this article, an interaction between the dark energy component (either phantom or quintessence) and dark matter can alleviate the coincidence problem of late cosmic acceleration, which is a serious riddle in connection with our understanding of the evolution of the universe.
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Holographic dark-energy models
TL;DR: In this paper, different holographic dark energy models are studied from a unified point of view, and the relation between the equation-of-state parameter and the energy density ratio of both components for each of the choices, as well as the possibility of noninteracting and scaling solutions are discussed.