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Journal article

Classification of Near-Horizon Geometries of Extremal Black Holes

Abstract

Any spacetime containing a degenerate Killing horizon, such as an extremal black hole, possesses a well-defined notion of a near-horizon geometry. We review such near-horizon geometry solutions in a variety of dimensions and theories in a unified manner. We discuss various general results including horizon topology and near-horizon symmetry enhancement. We also discuss the status of the classification of near-horizon geometries in theories ranging from vacuum gravity to Einstein-Maxwell theory and supergravity theories. Finally, we discuss applications to the classification of extremal black holes and various related topics. Several new results are presented and open problems are highlighted throughout.

Authors

Kunduri HK; Lucietti J

Journal

Living Reviews in Relativity, Vol. 16, No. 1,

Publisher

Springer Nature

Publication Date

September 25, 2013

DOI

10.12942/lrr-2013-8

ISSN

2367-3613

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