https://doi.org/10.1140/epjp/s13360-023-04168-x
Regular Article
Constraining quantum fluctuations of spacetime foam from BBN
1
Theoretical Physics Group and Quantum Alberta, Department of Physics and Astronomy, University of Lethbridge, 4401 University Drive, T1K 3M4, Lethbridge, AB, Canada
2
Dipartimento di Fisica ”E.R. Caianiello”, Università di Salerno, 84084, Fisciano, SA, Italy
3
INFN - Gruppo Collegato di Salerno, Fisciano, Italy
4
Theoretical Physics Group, Department of Physics, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait
Received:
14
April
2023
Accepted:
4
June
2023
Published online:
13
June
2023
A possibility to describe quantum gravitational fluctuations of the spacetime background is provided by virtual D-branes. These effects may induce a tiny violation of the Lorentz invariance (as well as a possible violation of the equivalence principle). In this framework, we study the formation of light elements in the early Universe (Big Bang Nucleosynthesis). By using the Big Bang Nucleosynthesis observations, We infer an upper bound on the topological fluctuations in the spacetime foam vacuum 
, given by 
.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. 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.
