Matches in SemOpenAlex for { <https://semopenalex.org/work/W2776995364> ?p ?o ?g. }
- W2776995364 abstract "We perform an analysis of models of chaotic inflation where the inflaton field $phi$ is coupled non-minimally to gravity via $xi phi^n g^{munu}R_{munu}(Gamma), n>0$. We focus on the Palatini theory of gravity, i.e. the case where the assumptions of the General Relativity are relaxed (that of the connection being the Levi-Civita one) and the gravitational degrees of freedom are encoded not only in the metric but also the connection $Gamma$, which is treated as an independent variable. We show that in this case the famous attractor behaviour of simple non-minimally coupled models of inflation is lost. Therefore the attractors are not universal but their existence depends on the underlying theory of gravity in a subtle way. We discuss what this means for chaotic models and their observational consequences." @default.
- W2776995364 created "2018-01-05" @default.
- W2776995364 creator A5007388772 @default.
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- W2776995364 date "2018-04-18" @default.
- W2776995364 modified "2023-10-14" @default.
- W2776995364 title "Palatini side of inflationary attractors" @default.
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- W2776995364 doi "https://doi.org/10.1103/physrevd.97.083513" @default.
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