Lukewarm black holes in quadratic gravity
Jerzy Matyjasek, Katarzyna Zwierzchowska
TL;DR
This paper constructs perturbative solutions for lukewarm black holes in quadratic gravity, focusing on configurations where the black hole and cosmological horizons share the same temperature in an asymptotically de Sitter universe.
Contribution
It introduces the first perturbative solutions for lukewarm black holes in fourth-order quadratic gravity, highlighting their thermodynamic properties.
Findings
Lukewarm black hole solutions are explicitly constructed.
The solutions exhibit equal horizon temperatures.
Implications for black hole thermodynamics in modified gravity.
Abstract
Perturbative solutions to the fourth-order gravity describing spherically-symmetric, static and electrically charged black hole in an asymptotically de Sitter universe is constructed and discussed. Special emphasis is put on the lukewarm configurations, in which the temperature of the event horizon equals the temperature of the cosmological horizon.
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