TY - JOUR AU - Boudet, S. AU - Bombacigno, F. AU - Montani, G. AU - Rinaldi, M. PY - 2021 DA - 2021// TI - Superentropic black hole with Immirzi hair T2 - Phys. Rev. D JO - Physical Review D SP - 084034 EP - 14pp VL - 103 IS - 8 PB - Amer Physical Soc AB - In the context of f(R) generalizations to the Hoist action, endowed with a dynamical Immirzi field, we derive an analytic solution describing asymptotically anti-de Sitter black holes with hyperbolic horizon. These exhibit a scalar hair of the second kind, which ultimately depends on the Immirzi field radial behavior. In particular, we show how the Immirzi field modifies the usual entropy law associated to the black hole. We also verify that the Immirzi field boils down to a constant value in the asymptotic region, thus restoring the standard loop quantum gravity picture. We finally prove the violation of the reverse isoperimetric inequality, resulting in the superentropic nature of the black hole, and we discuss in detail the thermodynamic stability of the solution. SN - 2470-0010 UR - https://arxiv.org/abs/2012.02700 UR - https://doi.org/10.1103/PhysRevD.103.084034 DO - 10.1103/PhysRevD.103.084034 LA - English N1 - WOS:000649081100011 ID - Boudet_etal2021 ER -