Magic Supergravities, N= 8 and Black Hole Composites (2006)
Ferrara, Sergio, Gimon, E G, Kallosh, Renata E
We present explicit U-duality invariants for the R, C, Q, O$ (real, complex, quaternionic and octonionic) magic supergravities in four and five dimensions using complex forms with a reality...
Domain walls, near-BPS bubbles, and probabilities in the landscape (2006)
Ceresole, A, Dall'Agata, G, Giryavets, A, Kallosh, Renata E, Linde, Andrei D
We develop a theory of static BPS domain walls in stringy landscape and present a large family of BPS walls interpolating between different supersymmetric vacua. Examples include KKLT models, STU...
Ferrara, Sergio, Kallosh, Renata E
We derive and solve the black hole attractor conditions of N=8 supergravity by finding the critical points of the corresponding black hole potential. This is achieved by a simple generalization of...
Supersymmetry in Singular Spaces (2000)
Bergshoeff, E A, Kallosh, Renata E, Van Proeyen, A
We develop the concept of supersymmetry in singular spaces, apply it in an example for 3-branes in D=5 and comment on 8-branes in D=10. The new construction has an interpretation that the brane is a...
Superconformal Symmetry, Supergravity and Cosmology (2000)
Kallosh, Renata E, Kofman, L A, Linde, Andrei D, Van Proeyen, A
We introduce the general N=1 gauge theory superconformally coupled to supergravity. The theory has local SU(2,2|1) symmetry and no dimensional parameters. The superconformal origin of the...
Supersymmetry and the Brane World (2000)
Kallosh, Renata E, Linde, Andrei D
We investigate the possibility of gravity localization on the brane in the context of supersymmetric theories. To realize this scenario one needs to find a theory with the supersymmetric flow stable...
Multivalued Entropy of Supersymmetric Black Holes (1999)
The supersymmetric flow equations describing the flow of moduli from infinity to the black hole horizon, and vice versa, are derived in the five-dimensional theories where the moduli space of the...
Supersymmetric Multiple Basin Attractors (1999)
Kallosh, Renata E, Linde, Andrei D, Shmakova, M
We explain that supersymmetric attractors in general have several critical points due to the algebraic nature of the stabilization equations. We show that the critical values of the cosmological...
$\kappa$ Symmetry, Supersymmetry and Intersecting Branes (1997)
Bergshoeff, E A, Kallosh, Renata E, Ortín, Tomas, Papadopoulos, G J
We present a new form of kappa-symmetry transformations for D-branes in which the dependence on the Born-Infeld field strength is expressed as a relative rotation on the left- and right-moving fields...
Black Holes and Critical Points in Moduli Space (1997)
Ferrara, Sergio, Gibbons, G W, Kallosh, Renata E
We study the stabilization of scalars near a supersymmetric black hole horizon using the equation of motion of a particle moving in a potential and background metric. When the relevant 4-dimensional...
Enhancement of Supersymmetry Near 5d Black Hole Horizon (1996)
Chamseddine, A H, Ferrara, Sergio, Gibbons, G W, Kallosh, Renata E
Geometric Killing spinors which exist on AdS_{p+2} X S^{d-p-2} sometimes may be identified with supersymmetric Killing spinors. This explains the enhancement of unbroken supersymmetry near the...
Classical and quantum N=2 supersymmetric black holes (1996)
Behrndt, K, Lópes-Cardoso, G, De Wit, Bernard, Kallosh, Renata E, Lüst, Dieter, Mohaupt, T
We use heterotic/type-II prepotentials to study quantum/classical black holes with half the $N=2, D=4$ supersymmetries unbroken. We show that, in the case of heterotic string compactifications, the...
Stationary axion/dilaton solutions and supersymmetry (1996)
Bergshoeff, E A, Kallosh, Renata E, Ortín, Tomas
We present a new set of supersymmetric stationary solutions of pure N=4,d=4 supergravity that generalize (and include) the Israel-Wilson- Perj\'es solutions of Einstein-Maxwell theory. All solutions...
Universality of supersymmetric attractors (1996)
Ferrara, Sergio, Kallosh, Renata E
The macroscopic entropy-area formula for supersymmetric black holes in N=2,4,8 theories is found to be universal: in d=4 it is always given by the square of the largest of the central charges...
Supersymmetry and attractors (1996)
Ferrara, Sergio, Kallosh, Renata E
We find a general principle which allows one to compute the area of the horizon of N=2 extremal black holes as an extremum of the central charge. One considers the ADM mass equal to the central...
N = 2 extremal black holes (1995)
Ferrara, Sergio, Kallosh, Renata E, Strominger, A
It is shown that extremal magnetic black hole solutions of N = 2 supergravity coupled to vector multiplets X^\Lambda with a generic holomorphic prepotential F(X^\Lambda) can be described as...