Regular Article - Theoretical Physics
f(T) cosmology via Noether symmetry
Department of Physics, Azarbaijan University of Tarbiat Moallem, Tabriz, 53741-161, Iran
2 Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), Maragha, 55134-441, Iran
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Published online: 22 May 2012
We consider the Noether symmetry approach to find exact cosmological solutions in f(T)-gravity. Instead of taking into account phenomenological models, we apply the Noether symmetry to f(T) gravity. As a result, the presence of such symmetries selects viable models and allows one to solve the equations of motion. We show that the generated f(T) leads to a power law expansion for the cosmological scale factor.
© Springer-Verlag / Società Italiana di Fisica, 2012