Abstract
We argue that the discrepancy between the Planck mass scale and the observed value of the cosmological constant can be largely attenuated, if those quantities are understood as a result of effective, and thus scale-dependent, couplings. We exemplify this mechanism for the early inflationary epoch of the universe by solving the corresponding effective gap equations, subject to an energy condition. Several non-trivial checks and extensions are discussed. A comparison of our results to the renormalization group flow, obtained within the asymptotic safety program reveals a stunning agreement.
Original language | English |
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Article number | 021 |
Journal | Journal of Cosmology and Astroparticle Physics |
Volume | 2020 |
Issue number | 1 |
DOIs | |
State | Published - 2020 |
Keywords
- gravity
- ination
- modified gravity