Magnetic AdS2 x R2 at Weak and Strong Coupling

Understand

We investigate an AdS2 magnetic brane solution within an abelian truncation of gauged supergravity in AdS4 x orbifolded S7.

• The solutions flow from AdS4 -> AdS2 x R2 with a magnetic field orthogonal to the R2 directions.
• We find a class of supersymmetric solutions of the bulk theory to assure stability.
• We find the remarkable result that there exists a finite zero temperature entropy at both strong and weak coupling.