Homogeneous and isotropic cosmology in general teleparallel gravity

We derive the most general homogeneous and isotropic teleparallel geometries, defined by a metric and a flat, affine connection. We find that there are five branches of connection solutions, which are connected via several limits, and can further be restricted to the torsion-free and metric-compatib...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2023-04, Vol.83 (4), p.315-315, Article 315
Main Authors: Heisenberg, Lavinia, Hohmann, Manuel, Kuhn, Simon
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Cosmology
Elementary Particles
Gravity
Hadrons
Heavy Ions
Lagrange multiplier
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular - Theoretical Physics
Regular Article - Theoretical Physics
String Theory
Theoretical physics
Theory of relativity
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Summary:We derive the most general homogeneous and isotropic teleparallel geometries, defined by a metric and a flat, affine connection. We find that there are five branches of connection solutions, which are connected via several limits, and can further be restricted to the torsion-free and metric-compatible cases. We apply our results to several classes of general teleparallel gravity theories and derive their cosmological dynamics for all five branches. Our results show that for large subclasses of these theories the dynamics reduce to that of closely related metric or symmetric teleparallel gravity theories, while for other subclasses up to two new scalar degrees of freedom participate in the cosmological dynamics.
ISSN:1434-6044
1434-6052
1434-6052
DOI:10.1140/epjc/s10052-023-11462-6