Non-minimal coupling of scalar fields in the dark sector and generalization of the top-hat collapse

Abstract In this article we propose a new way to handle interactions between two scalar fields, in the cosmological backdrop, where one scalar field oscillates rapidly in the cosmological time scale while the other one evolves without showing any periodic behavior. We have interpreted the rapidly os...

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Bibliographic Details
Main Authors: Priyanka Saha, Dipanjan Dey, Kaushik Bhattacharya
Format: Article
Language:English
Published: SpringerOpen 2025-04-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-025-14080-6
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