Some simple theories of gravity with propagating nonmetricity
General Relativity and Quantum Cosmology
2025-04-08 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We investigate symmetric Metric-Affine Theories of Gravity with a Lagrangian containing all operators of dimension up to four that are relevant to free propagation in flat space. Complementing recent work in the antisymmetric case, we derive the conditions for the existence of a single massive particle with good properties, in addition to the graviton.
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Cite
@article{arxiv.2401.10097,
title = {Some simple theories of gravity with propagating nonmetricity},
author = {Yusuke Mikura and Roberto Percacci},
journal= {arXiv preprint arXiv:2401.10097},
year = {2025}
}
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20 pages