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arXiv · 2412.04644

A bimetric cosmological model based on Andrei Sakharov's twin universe approach

Petit Jean-Pierre·Margnat Florent·Zejli Hicham
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Abstract

The standard cosmological model, based on Cold Dark Matter and Dark Energy ({\Lambda}CDM), faces several challenges. Among these is the need to adjust the scenario to account for he presence of vast voids in the large-scale structure of the universe, as well as the early formation of the first stars and galaxies. Additionally, the observed matter-antimatter asymmetry in the universe remains an unresolved issue. To address this latter question, Andrei Sakharov proposed a twin universe model in 1967. Building upon this idea and introducing interactions between these two universe sheets through a bimetric model, we propose an alternative interpretation of the large-scale structure of the universe, including its voids and the acceleration of cosmic expansion.

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Petit Jean-Pierre, Margnat Florent, Zejli Hicham. 2024-12-05. A bimetric cosmological model based on Andrei Sakharov's twin universe approach. https://doi.org/10.1140/epjc%2Fs10052-024-13569-w

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