Spin connection and cosmological perturbations in scalar-torsion gravity

Abstract

In this paper we generalize our previous results on spin connection for the linear scalar cosmological perturbation in $f(T)$ theory to wider class of theories which includes a scalar field $\Phi$ non-minimally coupled to torsion, and allows $\Phi$-dependence of the function $f$. The case of $f_{TT}=0$, with a scalar field non-minimally coupled to torsion needs a special treatment. In both considered cases we derive self-consistent equations of motion for cosmological perturbation using a solution for non-trivial spin connection.

arXiv admin note: substantial text overlap with arXiv:1911.06064

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Cited by in corpus (3)

• Can $f(R)$ gravity isotropize a pre-bounce contracting universe?
• Dynamics of a higher-dimension Einstein-Scalar-Gauss-Bonnet cosmology
• Teleparallel dark energy in a nonflat universe