Hairy black holes and holographic heat engine

Understand

By considering AdS charged black hole in the context of extended thermodynamic as the working substance we use it as a heat engine.

• We investigate the effect of hairy charge on the evolution of efficiency and Carnot efficiency along with electric charge.
• Because of interesting thermodynamic behavior of hairy black holes it would be natural to know their effects when we use black hole as a heat engine.
• We show that the hairy charge increases the efficiency, and so maximum temperature would be happened for bigger Maxwell charge when this hairy charge grows.