Criticality of charged AdS black holes with string clouds in boundary conformal field theory

Abstract

The aim of this letter is to study the universal thermodynamics and criticality of charged AdS black holes with string clouds in the bulk and in the boundary conformal field theory (CFT). For this system, we determined the critical quantities and noticed that the free energy in the bulk exhibits swallow tail behavior. In the boundary CFT, the presence of second order phase transition is observed. At constant charge, the heat capacity is finite in the bulk but diverges at critical points in the boundary CFT. Furthermore, we tried to determine the nature of interactions between black hole molecules in the boundary CFT and in the bulk, which is novel for charged AdS black holes with string clouds.