Asymptotically Weyl-invariant gravity
2019 ◽
Vol 34
(31)
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pp. 1950205
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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 [Formula: see text] action in the Palatini formalism, where the dimensionless exponent [Formula: see text] 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.
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1973 ◽
Vol 6
(2)
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pp. 236-246
2013 ◽
Vol 04
(09)
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pp. 1171-1175
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1939 ◽
Vol 170
(941)
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pp. 190-205
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2013 ◽
Vol 21
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pp. 153-154
Keyword(s):
2019 ◽
Vol 34
(27)
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pp. 1950152