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  -