GUP deformed background dynamics of phantom field
1
Issued Date
2024-11-01
Resource Type
ISSN
00017701
eISSN
15729532
Scopus ID
2-s2.0-85209388856
Journal Title
General Relativity and Gravitation
Volume
56
Issue
11
Rights Holder(s)
SCOPUS
Bibliographic Citation
General Relativity and Gravitation Vol.56 No.11 (2024)
Suggested Citation
Bhandari G., Pathak S.D., Sharma M., Wang A. GUP deformed background dynamics of phantom field. General Relativity and Gravitation Vol.56 No.11 (2024). doi:10.1007/s10714-024-03324-7 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/102154
Title
GUP deformed background dynamics of phantom field
Author(s)
Author's Affiliation
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Abstract
Quantum gravity has been baffling the theoretical physicist for decades now, both for its mathematical obscurity and phenomenological testing. Nevertheless, the new era of precision cosmology presents a promising avenue to test the effects of quantum gravity. In this study, we consider a bottom-up approach. Without resorting to any candidate quantum gravity, we invoke a generalized uncertainty principle (GUP) directly into the cosmological Hamiltonian for a universe sourced by a phantom scalar field with potential to study the evolution of the universe in a very early epoch. This is followed by a systematic analysis of the dynamics, both qualitatively and quantitatively. Our qualitative analysis shows that the introduction of GUP significantly alters the existence of fixed points for the potential considered in this paper. In addition, we confirm the existence of an inflationary phase and analyze the behavior of relevant cosmological parameters with respect to the strength of the GUP distortion.