Dynamical system analysis for an interacting scalar-torsion theory

In this paper, the dynamical system method has been used to study a new model of teleparallel gravity in which a scalar field non-minimally coupled to a boundary term given by the divergence of the torsion vector. An interaction between dark energy and dark matter has also been considered in the model. It has been explored whether there exist late-time accelerated scaling attractors with the ratio of dark matter and dark energy density parameters of the order one. By assuming a non-local form of interaction, a number of scaling solutions were found in the present model. It can therefore be concluded that the present model can alleviate the coincidence problem in cosmology.