Primordial Black Holes as Dark Matter Candidates in a Cyclic Universe

Bijan Kumar Gangopadhyay

doi:10.61343/jcm.v2i02.59

Authors

Bijan Kumar Gangopadhyay

DOI:

https://doi.org/10.61343/jcm.v2i02.59

Keywords:

Cyclic Universe, Primordial Black hole, Dark matter, SMBH

Abstract

This paper explores the role of primordial black holes (PBHs) as dark matter candidates within a cyclic universe framework. The model employs a scalar field to drive expansion, contraction, and bounce cycles, with PBHs persisting as stable dark matter components. Our analysis of PBH density evolution suggests that their interactions with the scalar field and visible matter contribute to mass-energy continuity across cycles. Numerical simulations reveal that PBHs account for approximately 2.6% of the total dark matter density. Additionally, our model predicts that supermassive black holes (SMBHs) gradually lose mass due to Hawking radiation and dark matter interactions, affecting cosmic structure and evolution. These findings underscore the potential role of PBHs in cyclic cosmology and dark matter composition.

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