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arxiv: 2203.04732 · v2 · pith:GWOD632Z · submitted 2022-03-09 · gr-qc · astro-ph.CO· hep-th

Minisuperspace Quantum Cosmology in Metric and Affine Theories of Gravity

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classification gr-qc astro-ph.COhep-th
keywords cosmologygravityquantumapproachmathcalminisuperspaceobservablesolutions
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Minisuperpace Quantum Cosmology is an approach by which it is possible to infer initial conditions for dynamical systems which can suitably represent observable and non-observable universes. Here we discuss theories of gravity which, from various points of view, extend Einstein's General Relativity. Specifically, the Hamiltonian formalism for $f(R)$, $f(T)$ and $f(\mathcal{G})$ gravity, with $R$, $T$, and $\mathcal{G}$ being the curvature, torsion and Gauss--Bonnet scalars, respectively, is developed starting from the Arnowitt-Deser-Misner approach. The Minisuperspace Quantum Cosmology is derived for all these models and cosmological solutions are obtained thanks to the existence of Noether symmetries. The Hartle criterion allows the interpretation of solutions in view of observable universes.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Canonical quantization of all minisuperspaces with consistent symmetry reductions

    gr-qc 2026-05 unverdicted novelty 5.0

    Canonical quantization of all consistent symmetry reductions of the Einstein-Hilbert Lagrangian, with solutions to the Wheeler-DeWitt equation both with and without imposed conformal symmetries.

  2. Canonical quantization of all minisuperspaces with consistent symmetry reductions

    gr-qc 2026-05 unverdicted novelty 5.0

    All minisuperspaces from symmetry reductions of the Einstein-Hilbert Lagrangian that obey the principle of symmetric criticality are canonically quantized and their Wheeler-DeWitt equations are solved.