Critical phenomena of static charged AdS black holes in conformal gravity

Understand

The extended thermodynamics of static charged AdS black holes in conformal gravity is analyzed.

• The $P-V$ criticality of these black holes has some unusual features.
• There exists a single critical point with critical temperature $T_c$ and critical pressure $P_c$.
• At fixed $T>T_c$ (or at fixed $P>P_c$), there are two zeroth order phase transition points but no first order phase transition points.