Some simple theories of gravity with propagating nonmetricity
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.
Authors
- Roberto Percacci (ORCID: https://orcid.org/0000-0002-3355-331X)
- Yusuke Mikura (ORCID: https://orcid.org/0000-0002-0797-5295)
Institutions
- Scuola Internazionale Superiore di Studi Avanzati (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (IT)
- Nagoya University (JP)
Publication Details
- Journal
- The European Physical Journal C
- Published
- 2025-04-02
- DOI
- https://doi.org/10.1140/epjc/s10052-025-14036-w
- Citations
- 4
- Primary Topic
- Cosmology and Gravitation Theories
- Type
- article
- Field-Weighted Citation Impact
- 4.62
Funders
- Japan Society for the Promotion of Science