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https://www.um.edu.mt/library/oar/handle/123456789/104350
Title: | Confronting quantum-corrected teleparallel cosmology with observations |
Authors: | Bernardo, Reginald Christian Chen, Che-Yu Said, Jackson Kung, Yu-Hsien |
Keywords: | Quantum cosmology Quantum gravity Dark energy (Astronomy) Perturbation (Astronomy) Gravitational fields |
Issue Date: | 2022 |
Publisher: | Institute of Physics Publishing Ltd |
Citation: | Bernardo, R. C., Chen, C. Y., Said, J. L., & Kung, Y. H. (2022). Confronting quantum-corrected teleparallel cosmology with observations. Journal of Cosmology and Astroparticle Physics, 2022(04), 052. |
Abstract: | It has been shown that at the semi-classical order, gravitational theories with quantum fluctuations can be effectively recast as modified theories of gravity with nonminimal gravity-matter couplings. We proceed from an observational perspective and see whether such quantum fluctuations can leave imprints on the late Universe. Within the teleparallel formulation, we investigate a representative model in this general class of modified gravitational theories inlaid with quantum fluctuations, and determine the cosmological parameters by using compiled late-time data sets. Furthermore, we assess the statistical significance of such quantum corrections compared to the standard cosmological model. The results mildly favor the inclusion of quantum corrections with a negative density parameter supporting a phantom-like dark energy. This edge is not sufficient to rule out either models but it supports the consideration of quantum corrections in a cosmological setting. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/104350 |
Appears in Collections: | Scholarly Works - InsSSA |
Files in This Item:
File | Description | Size | Format | |
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Confronting quantum corrected teleparallel cosmology with observations 2022.pdf Restricted Access | 599.89 kB | Adobe PDF | View/Open Request a copy |
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