Universal Corrections to Black Hole Entropy in $\mathcal{N} \geq 2$ Supergravity

Understand

We embed general solutions to 4D Einstein-Maxwell theory into $\mathcal{N} \geq 2$ supergravity and study quadratic fluctuations of the supergravity fields around the background.

• We compute one-loop quantum corrections for all fields and show that the $c$-anomaly vanishes for complete $\mathcal{N}=2$ multiplets.
• Logarithmic corrections to the entropy of Kerr-Newman black holes are therefore universal and independent of black hole parameters.