Bahamonde, S;
Boehmer, CG;
Wright, M;
(2015)
Modified teleparallel theories of gravity.
Physical Review D
, 92
(10)
, Article 104042. 10.1103/PhysRevD.92.104042.
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Abstract
We investigate modified theories of gravity in the context of teleparallel geometries. It is well known that modified gravity models based on the torsion scalar are not invariant under local Lorentz transformations while modifications based on the Ricci scalar are. This motivates the study of a model depending on the torsion scalar and the divergence of the torsion vector. We derive the teleparallel equivalent of f ( R ) gravity as a particular subset of these models and also show that this is the unique theory in this class that is invariant under local Lorentz transformation. Furthermore one can show that f ( T ) gravity is the unique theory admitting second-order field equations.
| Type: | Article |
|---|---|
| Title: | Modified teleparallel theories of gravity |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.92.104042 |
| Publisher version: | http://doi.org/10.1103/PhysRevD.92.104042 |
| Language: | English |
| Additional information: | © 2015 American Physical Society |
| Keywords: | Science & Technology, Physical Sciences, Astronomy & Astrophysics, Physics, Particles & Fields, Physics, GENERAL-RELATIVITY, TORSION GRAVITY, GAUGE THEORY |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1511311 |
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