D ec 2 00 7 UCB-PTH-07 / 21 Black Holes in Supergravity : the non-BPS Branch

  title={D ec 2 00 7 UCB-PTH-07 / 21 Black Holes in Supergravity : the non-BPS Branch},
  author={Eric G. Gimon and Finn Frandsen Larsen and Joan Sim{\'o}n},
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. 
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