Microscopic Entropy of the Black Ring
Michelle Cyrier, Monica Guica, David Mateos, Andrew Strominger
TL;DR
M theory is used to give an exact microscopic accounting of the entropy of a surprising new seven-parameter supersymmetric black ring solution of five-dimensional supergravity.
Abstract
A surprising new seven-parameter supersymmetric black ring solution of five-dimensional supergravity has recently been discovered. In this paper, M-theory is used to give an exact microscopic accounting of its entropy.