Thermodynamics and phase transition of topological dS black holes with a nonlinear source
Hui-Hua Zhao,Li-Chun Zhang,Fang Liu
Figure 3. Isotherms in the GP diagrams of a (n + 1) dimensional dS black hole with a weak nonlinear source of n = 3. Dashed lines match T < Tc, red thick solid lines match T = Tc and thin solid lines match T > Tc.