From GFT condensate cosmology, the authors derive an effective scalar field equation and a modified dispersion relation with dispersive and dissipative quantum gravity corrections.
Scalar Cosmological Perturbations
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abstract
In this paper we present the study of the scalar cosmological perturbations of a single field inflationary model up to first order in deviation. The Christoffel symbols and the tensorial quantities are calculated explicitly in function of the cosmic time t. The Einstein equations are solved up-to first order in deviation and the scalar perturbations equation is derived.
fields
gr-qc 1years
2026 1verdicts
CONDITIONAL 1representative citing papers
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Emergent scalar field dynamics in a cosmological spacetime from GFT quantum gravity
From GFT condensate cosmology, the authors derive an effective scalar field equation and a modified dispersion relation with dispersive and dissipative quantum gravity corrections.