Dynamical features of scalar-torsion theories

Abstract

We investigate the cosmological dynamics in teleparallel gravity with nonminimal coupling. We analytically extract several asymptotic solutions and we numerically study the exact phase-space behavior. Comparing the obtained results with the corresponding behavior of nonminimal scalar-curvature theory, we find significant differences, such is the rare stability and the frequent presence of oscillatory behavior.

arXiv comment11 pages with 7 figures, minor changes, version to appear in Phys. Rev. D

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