Combining periodic non-minimal couplings to the Nieh-Yan term and Ricci scalar in metric-affine gravity makes natural inflation viable for sub-Planckian periodicity scales.
Peccei--Quinn mechanism in gravity and the nature of the Barbero--Immirzi parameter
2 Pith papers cite this work. Polarity classification is still indexing.
2
Pith papers citing it
abstract
A general argument provides the motivation to consider the Barbero--Immirzi parameter as a field. The specific form of the geometrical effective action allows to relate the value of the Barbero--Immirzi parameter to other quantum ambiguities through the analog of the Peccei--Quinn mechanism.
fields
gr-qc 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
A naturally light scalar-like distortion field emerges in generalized gravity and mixes with the Higgs boson.
citing papers explorer
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Natural Metric-Affine Inflation: Reloaded
Combining periodic non-minimal couplings to the Nieh-Yan term and Ricci scalar in metric-affine gravity makes natural inflation viable for sub-Planckian periodicity scales.
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Naturally Light Distortion
A naturally light scalar-like distortion field emerges in generalized gravity and mixes with the Higgs boson.