Interacting tachyonic scalar field

A Kundu,S D Pathak,V K Ojha

Figure 2. Graphical variation of equations (12) for ${{\rm{\Omega }}}_{\lambda }^{0}=0.7$ and ${{\rm{\Omega }}}_{m}^{0}=0.3$ where cosmic time (in the unit of ${H}_{0}^{-1}$) is plotted against normalized dimensionless scale factor x in presence and absence of coupling.