Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-12-18
Phys.Rev.D83:104030,2011
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
6 pages; v2: minor edits to match published version
Scientific paper
10.1103/PhysRevD.83.104030
We analyze the relation between teleparallelism and local Lorentz invariance. We show that generic modifications of the teleparallel equivalent to general relativity will not respect local Lorentz symmetry. We clarify the reasons for this and explain why the situation is different in general relativity. We give a prescription for constructing teleparallel equivalents for known theories. We also explicitly consider a recently proposed class of generalized teleparallel theories, called f(T) theories of gravity, and show why restoring local Lorentz symmetry in such theories cannot lead to sensible dynamics, even if one gives up teleparallelism.
Barrow John D.
Li Baojiu
Sotiriou Thomas P.
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