Accelerated expansion of the Universe driven by G-essence

Understand

In the present work we analyze the g-essence model for the particular Lagrangian: $L=R+2[\alpha X^n+\epsilon Y-V(\psi,\bar{\psi})]$.

• The g-essence models were proposed recently as an alternative and as a generalization to the scalar k-essence.
• We have presented the 3 types solutions of the g-essence model.
• We reconstructed the corresponding potentials and the dynamics of the scalar and fermionic fields according the evolution of the scale factor.