Interacting tachyonic scalar field

We discuss the coupling between dark energy and matter by considering a homogeneous tachyonic scalar field as a candidate for dark energy. We obtained the functional form of scale factor by assuming that the coupling strength depends linearly on the Hubble parameter and energy density. We also estimated the cosmic age of the Universe for different values of coupling constant.

Automated summary

The study explores the coupling between dark energy and matter using a homogeneous tachyonic scalar field as a potential candidate for dark energy. By assuming a linear dependence of coupling strength on the Hubble parameter and energy density, the functional form of scale factor was derived. The cosmic age of the Universe was estimated for various values of the coupling constant.