Sep 24 – 28, 2017
Kazimierz Dolny, Poland
Europe/Warsaw timezone

New classes of modified teleparallel gravity models

Not scheduled
Kazimierz Dolny, Poland

Kazimierz Dolny, Poland

Dom Pracy Twórczej SDP ul. Małachowskiego 17 24-120 Kazimierz Dolny
Oral presentation (preferred) Cosmology II


Sebastian Bahamonde (University College London)


In this talk, a new class of modified teleparallel theory is presented. The action of this theory
is constructed by a function of the irreducible parts of torsion f(Tax, Tten, Tvec), where Tax, Tten
and Tvec are the axial, tensor and vector components of torsion. This is the most general (well-motivated) second order teleparallel theory of gravity that can be constructed from the torsion
tensor. Different particular second order theories can be recovered from this theory as new general
relativity, conformal teleparallel gravity or f(T) gravity. Additionally, the boundary term B which
connects the Ricci scalar with the torsion scalar via R = −T + B is also incorporated in the action.
By performing a conformal transformation, I will show that the unique theories which have an
Einstein frame are either TEGR or f(−T + B) = f(R) as expected. In this presentation, I will also discuss about the issue of the violation of the local Lorentz transformations within these theories.

Primary authors

Sebastian Bahamonde (University College London) Krssac Martin Christian Boehmer (UCL)

Presentation materials

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