Editing AdS/CFT correspondence (section)

=== Kerr/CFT correspondence ===

{{Main|Kerr/CFT correspondence}}

Although the AdS/CFT correspondence is often useful for studying the properties of black holes,{{refn|See subsection ''{{slink|#Black hole information paradox}}''.}} most of the black holes considered in the context of AdS/CFT are physically unrealistic. Indeed, as explained above, most versions of the AdS/CFT correspondence involve higher-dimensional models of spacetime with unphysical supersymmetry.

In 2009, Monica Guica, Thomas Hartman, Wei Song, and Andrew Strominger showed that the ideas of AdS/CFT could nevertheless be used to understand certain [[astrophysical]] black holes. More precisely, their results apply to black holes that are approximated by [[extremal black hole|extremal]] [[Kerr black hole]]s, which have the largest possible angular momentum compatible with a given mass.{{sfn|ps=|Guica|Hartman|Song|Strominger|2009}} They showed that such black holes have an equivalent description in terms of conformal field theory. The Kerr/CFT correspondence was later extended to black holes with lower angular momentum.{{sfn|ps=|Castro|Maloney|Strominger|2010}}