Blackfolds in Supergravity and String Theory

TL;DR

The paper extends the blackfold framework to charged black branes in supergravity, formulating an effective worldvolume theory for p-branes carrying conserved charges and currents. It then yields a broad class of rotating, charged black holes with D-brane, F1, and other brane charges (including dipoles) and analyzes their near-extremal stability, extremal limits, and horizon topologies, notably new extremal D1-D5-P black holes with regular finite-area horizons. The approach provides both intrinsic-fluid and extrinsic-geometric balance equations, enabling construction of solutions on odd-sphere and KK-circle manifolds, and explores two-charge systems (D0-Dp, F1-Dp) to study charge-wave stability. Overall, the work expands the landscape of higher-dimensional black holes in string theory, connects to microscopic brane physics, and clarifies stability and thermodynamics of these novel configurations with potential implications for holography and quantum gravity.

Abstract

We develop the effective worldvolume theory for the dynamics of black branes with charges of the kind that arise in many supergravities and low-energy limits of string theory. Using this theory, we construct numerous new rotating black holes with charges and dipoles of D-branes, fundamental strings and other branes. In some instances, the black holes can be dynamically stable close enough to extremality. Some of these black holes, such as those based on the D1-D5-P system, have extremal, non-supersymmetric limits with regular horizons of finite area and a wide variety of horizon topologies and geometries.