Black hole deconstruction

Abstract

A D4-D0 black hole can be deconstructed into a bound state of D0 branes with a D6-D6 pair containing worldvolume fluxes. The exact spacetime solution is known and resembles a D0 accretion disk surrounding a D6-D6 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 D6-D6 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 Poincare, time translations in this core AdS3. We further find that the quantum mechanical ground state degeneracy reproduces the Bekenstein-Hawking entropy-area law.