P-V criticality of AdS black holes in a general framework

Understand

In black hole thermodynamics, it has been observed that AdS black holes behave as van der Waals system if one interprets the cosmological constant as a pressure term.

• Also the critical exponents for the phase transition of AdS black holes and the van der Waals systems are same.
• Till now this type of analysis is done by two steps.
• In the first step one shows that a particular metric allows phase transition and in the second step, using this information, one calculates the exponents.