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A detailed dynamical analysis of the tachyonic teleparallel dark energy model, in which a noncanonical scalar field (tachyon field) is nonminimally coupled to gravitation, is performed. It is found that, when the nonminimal coupling is ruled by a dynamically changing coefficient f, /f, with f () an arbitrary function of the scalar field, the Universe may experience a field-matter-dominated era ``, '' in which it has some portions of the energy density of in the matter dominated era. This is the most significant difference in relation to the so-called teleparallel dark energy scenario, in which a canonical scalar field (quintessence) is nonminimally coupled to gravitation.
Giovanni Otalora (Tue,) studied this question.