175 citations · 1.3k across the 24 of their papers we have counts for
14 papers · 1 filter
Generalized Attractor Points in Gauged Supergravity
Shamit Kachru, Renata Kallosh, Marina Shmakova
The attractor mechanism governs the near-horizon geometry of extremal black holes in ungauged 4D N=2 supergravity theories and in Calabi-Yau compactifications of string theory. In…
A new two-faced scalar solution and cosmological SUSY breaking
Marina Shmakova, Valentin Burov
We propose a possible new way to resolve the long standing problem of strong supersymmetry breaking coexisting with a small cosmological constant. We consider a scalar component of…
Brane Inflation, Solitons and Cosmological Solutions: I
Pisin Chen, Keshav Dasgupta, K. Narayan +2
In this paper we study various cosmological solutions for a D3/D7 system directly from M-theory with fluxes and M2-branes. In M-theory, these solutions exist only if we incorporate…
On Branes and Oriented B-fields
Keshav Dasgupta, Marina Shmakova
Novel theories appear on the world-volume of branes by orienting B fields along various directions of the branes. We review some of the earlier developments and explore many new ex…
Supergravity, Dark Energy and the Fate of the Universe
Renata Kallosh, Andrei Linde, Sergey Prokushkin +1
We propose a description of dark energy and acceleration of the universe in extended supergravities with de Sitter (dS) solutions. Some of them are related to M-theory with non-com…
Gauged Supergravities, de Sitter Space and Cosmology
Renata Kallosh, Andrei Linde, Sergey Prokushkin +1
We have studied scalar potentials V of gauged N=8,4,2 supergravities in d=4. Extrema of these potentials may correspond to de Sitter, anti de Sitter and Minkowski vacua. All de Sit…
Domain Walls with Strings Attached
Renata Kallosh, Sergey Prokushkin, Marina Shmakova
We have constructed a bulk & brane action of IIA theory which describes a pair of BPS domain walls on S_1/Z_2, with strings attached. The walls are given by two orientifold O8-plan…
Domain Walls, Black Holes, and Supersymmetric Quantum Mechanics
Klaus Behrndt, Sergei Gukov, Marina Shmakova
Supersymmetric solutions, such as BPS domain walls or black holes, in four- and five-dimensional supergravity theories with eight supercharges can be described by effective quantum…
Excision of Singularities by Stringy Domain Walls
Renata Kallosh, Thomas Mohaupt, Marina Shmakova
We study supersymmetric domain walls on S_1/Z_2 orbifolds. The supergravity solutions in the bulk are given by the attractor equation associated with Calabi-Yau spaces and have a n…
Supersymmetric Multiple Basin Attractors
Renata Kallosh, Andrei Linde, Marina Shmakova
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 th…
One-loop corrections to the D3 brane action
Marina Shmakova
We calculate one-loop corrections to the effective Lagrangian for the D3 brane. We perform the gauge-fixing of the kappa-symmetric Born-Infeld D3 brane action in the flat backgroun…
Critical Points and Phase Transitions in 5D Compactifications of M-Theory
A. Chou, R. Kallosh, J. Rahmfeld +3
We study critical points of the BPS mass , the BPS string tension , the black hole potential and the gauged central charge potential for M-theory compactified on Ca…
Calabi-Yau Black Holes
Marina Shmakova
We have found the entropy of N=2 extreme black holes associated with general Calabi-Yau moduli space. We show that for arbitrary d_{ABC} and black hole charges the entropy-area for…
STU Black Holes and String Triality
Klaus Behrndt, Renata Kallosh, Joachim Rahmfeld +2
We find double-extreme black holes associated with the special geometry of the Calabi-Yau moduli space with the prepotential F=STU. The area formula is STU-moduli independent and h…