Black hole thermodynamics and heat engines in conformal gravity

  title={Black hole thermodynamics and heat engines in conformal gravity},
  author={Haoting Xu and Yuan Sun and Liu Zhao},
  journal={arXiv: General Relativity and Quantum Cosmology},
The extended phase space thermodynamics and heat engines for static spherically symmetric black hole solutions of four dimensional conformal gravity are studied in detail. It is argued that the equation of states (EOS) for such black holes is always branched, any continuous thermodynamical process cannot drive the system from one branch of the EOS into another branch. Meanwhile, the thermodynamical volume is bounded from above, making the black holes always super-entropic in one branch and may… Expand

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