f(T) Gravity and local Lorentz invariance

Details f(T) Gravity and local Lorentz invariance f(T) Gravity and local Lorentz invariance

2010-10-06

arxiv.org/abs/1010.1041v3

Phys.Rev.D83:064035,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, no figure; v2: Added discussion about modifying the theory in order to make it manifestly Lorentz covariant and one r

Scientific paper

10.1103/PhysRevD.83.064035

We show that in theories of generalised teleparallel gravity, whose Lagrangians are algebraic functions of the usual teleparallel Lagrangian, the action and the field equations are not invariant under local Lorentz transformations. We also argue that these theories appear to have extra degrees of freedom with respect to general relativity. The usual teleparallel Lagrangian, which has been extensively studied and leads to a theory dynamically equivalent to general relativity, is an exception. Both of these facts appear to have been overlooked in the recent literature on f(T) gravity, but are crucial for assessing the viability of these theories as alternative explanations for the acceleration of the universe.

Affiliated with

Also associated with

No associations

Rating

f(T) Gravity and local Lorentz invariance does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with f(T) Gravity and local Lorentz invariance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and f(T) Gravity and local Lorentz invariance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-427082