2009/10/31 by Anna Ceresole, Gianguido Dall’Agata, Gianguido Dall'Agata +3 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Pulsars and Gravitational Waves Research #hep-th
paper · pdf · doi:10.1016/j.nuclphysb.2010.02.015
published as Nucl.Phys.B832:358-381, 2010 · 29 pages. v2: typos corrected, comments and references added
arxiv created 2009/11/19 · openalex publication_date 2010/02/21 · arxiv updated 2011/03/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We provide a general strategy to obtain the superpotential W for both BPS and non-BPS extremal black holes in N=2 four dimensional supergravities based on symmetric spaces. This extends the construction of W in terms of U-duality invariants that was presented in previous work on the t3 model. As an application, we explicitly provide W and the solutions to the related gradient flows for the st2 and stu models. The procedure is shown to hold also for the full N=8 theory. The role of flat directions in moduli space is clarified.