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- W3118465774 abstract "Abstract We study the quantum evolution of the early Universe, its semi-classical analogue together with inflationary regime, in view of a generalized modified theory of gravity. The action is built by supplementing the non-minimally coupled scalar–tensor theory of gravity with scalar curvature squared term and a Gauss–Bonnet-dilatonic coupled term. It is generalized, since all the parameters are treated as arbitrary functions of the scalar field. It is interesting to explore the fact that instead of considering additional flow parameters, an effective potential serves the purpose of finding inflationary parameters. The dilaton stabilization issue appears here as a problem with reheating. Addition of a cosmological constant term alleviates the problem, and inflation is effectively driven by the vacuum energy density. Thus Gauss–Bonnet term might play a significant role in describing late-time cosmic evolution." @default.
- W3118465774 created "2021-01-18" @default.
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- W3118465774 date "2020-12-16" @default.
- W3118465774 modified "2023-10-16" @default.
- W3118465774 title "Early Universe in view of a modified theory of gravity" @default.
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- W3118465774 doi "https://doi.org/10.1088/1361-6382/abc222" @default.
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