Black Brane

A black brane is a solution of the Einstein field equations that generalizes a black hole by extending it, with translational symmetry, into additional spatial dimensions. In string theory the term is also used for a class of D-branes that are surrounded by a horizon, and physicists commonly distinguish a black brane from a black hole by the shape of its singularity, which is not a single point as for a black hole but a higher-dimensional object. Black branes extend black hole physics into extra dimensions both within general relativity and within string theory, and they provide a richer mathematical setting for studying gravitational phenomena beyond four spacetime dimensions.