727 citations · 11k across the 195 of their papers we have counts for
10 papers · 1 filter
Observations on Arithmetic Invariants and U-Duality Orbits in N =8 Supergravity
Massimo Bianchi, Sergio Ferrara, Renata Kallosh
We establish a relation between time-like, light-like and space-like orbits of the non-compact E{7(7)}(R)symmetry and discrete E{7(7)}(Z) invariants. We discuss the U-duality invar…
Universality of the superpotential for d = 4 extremal black holes
Anna Ceresole, Gianguido Dall'Agata, Sergio Ferrara +1
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 ex…
A special road to AdS vacua
Davide Cassani, Sergio Ferrara, Alessio Marrani +2
We apply the techniques of special Kaehler geometry to investigate AdS_4 vacua of general N=2 gauged supergravities underlying flux compactifications of type II theories. We formul…
Perturbative and Non-perturbative N =8 Supergravity
Massimo Bianchi, Sergio Ferrara, Renata Kallosh
We study extremal black holes, their ADM mass and area of the horizon in N = 8 supergravity. Contrary to intuition gained from N = 2, 4 theories, in N = 8 supergravity BPS states m…
First order flows for N=2 extremal black holes and duality invariants
Anna Ceresole, Gianguido Dall'Agata, Sergio Ferrara +1
We derive explicitly the superpotential W for the non-BPS branch of N=2 extremal black holes in terms of duality invariants of special geometry. Although this is done for a one-mod…
5d/4d U-dualities and N=8 black holes
Anna Ceresole, Sergio Ferrara, Alessandra Gnecchi
We use the connection between the U-duality groups in d=5 and d=4 to derive properties of the N=8 black hole potential and its critical points (attractors). This approach allows to…