Logarithmic correction to the entropy of a Kerr-Newman family of black holes in U(1)2 -charged STU supergravity models

Abstract

The leading quantum-gravitational correction to the black hole entropy is known to be a universal logarithmic term. In this study, we investigate the logarithmic corrections for the black holes in the STU supergravity models, which are a bosonic truncation into a specific class of U(1)2-charged Einstein-Maxwell-dilaton theory. We demonstrate how the entire Kerr-Newman-AdS and Kerr-Newman family of black holes can be recovered within the gauged and ungauged STU supergravity models as special embedding choices in 4D. Logarithmic corrections are computed using two distinct Euclidean quantum gravity setups for extremal and nonextremal limits of all embedded rotating, static, charged, and neutral black holes. Our calculations employ the on-shell heat kernel method based Seeley-DeWitt expansion computations. Notably, all the AdS4 results exhibit a confirmed nontopological nature as compared to the flat counterparts, offering a natural and more comprehensive “infrared window into the microstates” of black holes. Published by the American Physical Society 2025