Cosmological Dynamics of a Hybrid Chameleon Scenario

Figure 4

3-dimensional phase space trajectories of the model with 𝑚=0.6, 𝑛=0.5, 𝛽=1, and 𝜔=0. For these values of parameters, we have a potential energy dominated solution (point M) which is a stable attractor. The points N and P (corresponding to the effectively matter dominated era) are saddle points.