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 β derived from other cosmological studies.
Primordial big bang nucleosynthesis and generalized uncertainty principle
Luciano, Giuseppe Gaetano
2021-01-01
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 β derived from other cosmological studies.File in questo prodotto:
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