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Peccei--Quinn mechanism in gravity and the nature of the Barbero--Immirzi parameter
classification
🌀 gr-qc
hep-th
keywords
barbero--immirziparametermechanismpeccei--quinnactionallowsambiguitiesanalog
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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.
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Cited by 1 Pith paper
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Naturally Light Distortion
A naturally light scalar-like distortion field emerges in generalized gravity and mixes with the Higgs boson.
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