https://doi.org/10.1140/epjp/s13360-025-06223-1
Regular Article
The new higher-order generalized uncertainty principle and Big Bang nucleosynthesis
1
School of Physics and Astronomy, China West Normal University, 637009, Nanchong, China
2
School of Information Science and Engineering, Chengdu University, 610106, Chengdu, China
Received:
10
December
2024
Accepted:
16
March
2025
Published online:
22
April
2025
The generalized uncertainty principle (GUP), as a key model in quantum gravity, is crucial for exploring cosmological properties and related challenges. In this paper, we investigate the effects of a higher-order GUP on primordial Big Bang nucleosynthesis (BBN). First, using a new higher-order GUP, we derive the modified Friedmann equations and the corresponding thermodynamic properties of the universe within the quantum gravity framework. Next, we analyze BBN under these modifications. Finally, by incorporating observational data of BBN and the primordial light element abundances, respectively, we establish constraints on the GUP parameter. The results reveal a significant impact of the GUP on the BBN processes in the early universe. Notably, the GUP parameter is found to take both positive and negative values, which is different from the classical case.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
