Black hole deconstruction

Abstract

A D4-D0 black hole can be deconstructed into a bound state of D0 branes with a pair containing worldvolume fluxes. The exactha spacetime solution is known and resembles a D0 accretion disk surrounding a core. We find a scaling limit in which the disk and core drop inside an AdS₂ throat. Crossing this AdS₂ throat and the D0 accretion disk into the core, we find a second scaling region describing the pair. It is shown that the M-theory lift of this region is AdS₃ × S². Surprisingly, time translations in the far asymptotic region reduce to global, rather than Poincaré, time translations in this core AdS₃. We further find that the quantum mechanical ground state degeneracy reproduces the Bekenstein-Hawking entropy-area law.