Abstract
We propose a novel theory of gravity that by construction is renormalizable, evades Ostrogradsky's no-go theorem, is locally scale-invariant in the high-energy limit, and equivalent to general relativity in the low-energy limit. The theory is defined by a pure f(R) = Rn action in the Palatini formalism, where the dimensionless exponent n runs from a value of two in the high-energy limit to one in the low-energy limit. We show that the proposed model contains no obvious cosmological curvature singularities. The viability of the proposed model is qualitatively assessed using several key criteria.
Original language | English |
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Article number | 1950205 |
Journal | International Journal of Modern Physics A |
Volume | 34 |
Issue number | 31 |
ISSN | 0217-751X |
DOIs | |
Publication status | Published - 10 Nov 2019 |
Keywords
- General relativity
- f(R) gravity
- Palatini gravity
- quantum gravity