Black Holes in Supergravity: the non-BPS Branch

Understand

We construct extremal, spherically symmetric black hole solutions to 4D supergravity with charge assignments that preclude BPS-saturation.

• In particular, we determine the ground state energy as a function of charges and moduli.
• We find that the mass of the non-BPS black hole remains that of a marginal bound state of four basic constituents throughout the entire moduli space and that there is always a non-zero gap above the BPS bound.