Primordial Big Bang Nucleosynthesis and Generalized Uncertainty Principle

Abstract

The Generalized Uncertainty Principle (GUP) naturally emerges in several quantum gravity models, predicting the existence of a minimal length at Planck scale. Here, we consider the quadratic GUP as a semiclassical approach to thermodynamic gravity and constrain the deformation parameter by using observational bounds from Big Bang Nucleosynthesis and primordial abundances of the light elements 4He,D,7Li. We show that our result fits with most of existing bounds on βderived from other cosmological studies.

arXiv comment8 pages, 2 tables

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