Does fractal universe favour warm inflation: Observational support?

Akash Bose (Department of Mathematics, Jadavpur University, Kolkata-700032, West Bengal, India) ; Subenoy Chakraborty (Department of Mathematics, Jadavpur University, Kolkata-700032, West Bengal, India)

The present work examines the possibility of warm inflationary paradigm in the modified gravity theory with fractal geometry. By choosing the normal fluid as radiation fluid and the effective fluid (with the extra term in modified field equation) as the inflaton field both strong and weak dissipative regimes have been studied using slow roll approximation with quasi-stable criteria for radiation. Finally, using the Planck data set, the present model has been analyzed for various choices of the fractal function and the dissipation parameter.

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Published on:
05 April 2022
Publisher:
Elsevier
Published in:
Nuclear Physics B , Volume 978 C (2022)

Article ID: 115767
DOI:
https://doi.org/10.1016/j.nuclphysb.2022.115767
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

Fulltext files: