# Quantum effects for near-extremal black holes
For non-SUSY black holes, correctly accounting for quantum effects for near-extremal black holes gives$Z_{grav}\sim T^{\#}e^{S_0+T S_1}$so that the degeneracy goes to zero as $T\to 0$.
In the SUSY case, there is a delta function density of states at exact extremality and a gap between the ground state and excited states.
## Refs
- review
- [[2023#Turiaci (News)]]
- full higher-dimensional perspective
- [[2024#Kolanowski, Marolf, Rakic, Rangamani, Turiaci]]
- $T^{3/2}$ scaling from [[0631 DHS formula|DHS formula]]
- [[2024#Kapec, Law, Toldo]]
- Kerr
- Reissner-Nordström
- strange metal
- [[2024#Liu, Nian, Zayas]]