Dark energy cosmology with tachyon field in teleparallel gravity
Motavalli H., Akbarieh A.R., Nasiry M.

Received: March 11, 2016

DOI: 10.7868/S0044451016070051

PDF (229.6K)

We construct a tachyon teleparallel dark energy model for a homogeneous and isotropic flat universe in which a tachyon as a non-canonical scalar field is non-minimally coupled to gravity in the framework of teleparallel gravity. The explicit form of potential and coupling functions are obtained under the assumption that the Lagrangian admits the Noether symmetry approach. The dynamical behavior of the basic cosmological observables is compared to recent observational data, which implies that the tachyon field may serve as a candidate for dark energy.