Journal
EUROPEAN PHYSICAL JOURNAL PLUS
Volume 136, Issue 2, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1140/epjp/s13360-021-01133-4
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Funding
- University of Malta
- COST Action [CA18108]
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The study introduces a new teleparallel gravity analog to Proca theories by extending the generalised Proca framework due to the lower-order nature of torsion-based gravity. It explores the possibility of a much larger class of teleparallel Proca theories models that do have an impact on background cosmology, as demonstrated by the example of the Friedmann equations in this regime.
Generalised Proca theories of gravity represent an interesting class of vector-tensor theories where only three propagating degrees of freedom are present. In this work, we propose a new teleparallel gravity analog to Proca theories where the generalised Proca framework is extended due to the lower-order nature of torsion-based gravity. We develop a new action contribution and explore the example of the Friedmann equations in this regime. We find that teleparallel Proca theories offer the possibility of a much larger class of models in which do have an impact on background cosmology.
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