title: World-volume effective theory for higher-dimensional black holes.
abstract: We argue that the main feature behind novel properties of higher-dimensional black holes, compared to four-dimensional ones, is that their horizons can have two characteristic lengths of very different size. We develop a long-distance world-volume effective theory that captures the black hole dynamics at scales much larger than the short scale. In this limit the black hole is regarded as a blackfold: a black brane (possibly boosted locally) whose world volume spans a curved submanifold of the spacetime. This approach reveals black objects with novel horizon geometries and topologies more complex than the black ring, but more generally it provides a new organizing framework for the dynamics of higher-dimensional black holes.
authors.affiliation: Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010 Barcelona, Spain. emparan@ub.edu
authors.forename: Roberto
authors.initials: R
authors.lastname: Emparan
authors.forename: Troels
authors.initials: T
authors.lastname: Harmark
authors.forename: Vasilis
authors.initials: V
authors.lastname: Niarchos
authors.forename: Niels A
authors.initials: NA
authors.lastname: Obers