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Towards Metric-Affine Quantum Gravity
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I review here some motivations to consider a theory of gravity based on independent metric and connection, and its status as a quantum theory.
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Cited by 3 Pith papers
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Scale-invariant Schr\"{o}dinger geometry in symmetric teleparallel gravity
A quadratic nonmetricity action of Schrödinger type is locally scale-invariant exactly when its Palatini connection equations admit the length-preserving Schrödinger connection.
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Inflation with nondynamic distortion to leading order in slow roll
Nondynamic distortion integrated out of a 13-parameter metric-affine action sources the entire inflaton kinetic term; monomial models depend only on exponent ratio while α-attractors recover modified Starobinsky observables.
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Complete background cosmology of parity-even quadratic metric-affine gravity
The full background dynamics of parity-even quadratic metric-affine gravity in FLRW spacetimes are derived, including branches with spatial-curvature screening and analytic de Sitter-like solutions.
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