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- W3037948929 abstract "Affine gravity, a gravity theory based on affine connection with no notion of metric, supports scalar field dynamics only if scalar fields have non-vanishing potential. The non-vanishing vacuum energy ensures that the cosmological constant is non-vanishing. It also ensures that the energy-momentum tensor of vacuum gives the dynamically generated metric tensor. We construct this affine setup and study primordial inflation in it. We study inflationary dynamics in affine gravity and general relativity, comparatively. We show that non-minimally coupled inflaton dynamics can be transformed into a minimally-coupled one with a modified potential. We also show that there is one unique frame in affine gravity, as opposed to the Einstein and Jordan frames in general relativity. Future observations with higher accuracy may be able to test the affine gravity." @default.
- W3037948929 created "2020-07-02" @default.
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- W3037948929 date "2017-06-06" @default.
- W3037948929 modified "2023-09-25" @default.
- W3037948929 title "Affine inflation" @default.
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- W3037948929 doi "https://doi.org/10.1103/physrevd.95.124007" @default.
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