Dark Energy as a Natural Property of Cosmic Polytropes—A Tutorial

A conventional approach to the dark energy (DE) concept is reviewed and discussed. According to it, there is absolutely no need for a novel DE component in the universe, provided that its matter–energy content is represented by a perfect fluid whose volume elements perform polytropic flows. When the...

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Bibliographic Details
Main Authors: Kostas Kleidis, Nikolaos K. Spyrou
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Dynamics
Subjects:
Online Access:https://www.mdpi.com/2673-8716/3/1/6