Electroweak stability and non-minimal coupling
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2017/05/004
Abstract: The measured values of the Higgs and top quark mass indicate that the electroweak vacuum is metastable if there is no new physics below the Planck scale. This is at odds with a period of… read more here.
Keywords: stability non; physics; electroweak stability; minimal coupling ... See more keywords
Constraints on non-minimal coupling from quantum cosmology
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/08/025
Abstract: Quantum cosmology is investigated in a de Sitter minisuperspace model with a quantized scalar field non-minimally coupled to curvature. Quantum states of the scalar field must satisfy the regularity condition, which requires that the probability… read more here.
Keywords: constraints non; field; cosmology; minimal coupling ... See more keywords
Non-minimal coupling inflation and dark matter under the ℤ3 symmetry
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2023/05/049
Abstract: We study the cosmological inflation and dark matter (DM) in a unified way within a ℤ3 complex scalar model. The real and imaginary parts of the complex scalar act as the inflaton and DM respectively.… read more here.
Keywords: dark matter; minimal coupling; inflation; non minimal ... See more keywords
Group theoretical derivation of the minimal coupling principle
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DOI: 10.1098/rspa.2016.0629
Abstract: The group theoretical methods worked out by Bargmann, Mackey and Wigner, which deductively establish the Quantum Theory of a free particle for which Galileian transformations form a symmetry group, are extended to the case of… read more here.
Keywords: coupling principle; group; minimal coupling; group theoretical ... See more keywords
$$\varLambda $$CDM suitably embedded in f(R) with a non-minimal coupling to matter
Sign Up to like & getrecommendations! Published in 2021 at "European Physical Journal C"
DOI: 10.1140/epjc/s10052-021-09004-z
Abstract: In this work, we further study a metric modified theory of gravity which contains a non-minimal coupling to matter, more precisely, we assume two functions of the scalar curvature, $$f_1$$ and $$f_2$$ , where the… read more here.
Keywords: non minimal; coupling matter; minimal coupling; matter ... See more keywords