Universal corrections to non-extremal black hole entropy in (Formula presented.) supergravity

Abstract

Abstract: We embed general solutions to 4D Einstein-Maxwell theory into N≥2 (Formula presented.) super-gravity 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 N=2 (Formula presented.) multiplets. Logarithmic corrections to the entropy of Kerr-Newman black holes are therefore universal and independent of hole parameters.