Cosmological Dynamics of a Hybrid Chameleon Scenario

Figure 5

3-dimensional phase space trajectories of the model with 𝑚=1.2, 𝑛=0.7, 𝛽=1 and 𝜔=0. For these values of parameters, the potential energy dominated solution (point M) is a saddle point, while the point Q (corresponding to the chameleon dominated solution) is a stable attractor solution.