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- Shamit Kachru, R . E . Kallosh, Andrei Linde, Juan M . Maldacena, Liam McAllister, Sandip P. Trivedi
- 2003

We investigate the embedding of brane inflation into stable compactifications of string theory. At first sight a warped compactification geometry seems to produce a naturally flat inflaton potential, evading one well-known difficulty of brane-antibrane scenarios. Careful consideration of the closed string moduli reveals a further obstacle: superpotential… (More)

We propose a new mechanism for obtaining de Sitter vacua in type IIB string theory compactified on (orientifolded) Calabi-Yau manifolds similar to those recently studied by Kachru, Kallosh, Linde and Trivedi (KKLT). dS vacuum appears in KKLT model after uplifting an AdS vacuum by adding an anti-D3-brane, which explicitly breaks supersymmetry. We accomplish… (More)

- Eric Bergshoeff, R . E . Kallosh, Tomás Ort́ın, Diederik Roest, Antoine Van Proeyen
- 1998

We discuss a generalized form of IIA/IIB supergravity depending on all R-R potentials C (p = 0, 1, . . . 9) as the effective field theory of Type IIA/IIB superstring theory. For the IIA case we explicitly break this R-R democracy to either p ≤ 3 or p ≥ 5 which allows us to write a new bulk action that can be coupled to N = 1 supersymmetric brane actions.… (More)

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 extremized in the moduli space. The proof of universality is based on the fact that the doubling of unbroken supersymmetry near the black hole horizon requires that… (More)

- Piet Claus, Martijn Derix, R . E . Kallosh, Jason Kumar, Paul K. Townsend, Antoine Van Proeyen
- 1998

The dynamics of a superparticle near the horizon of an extreme ReissnerNordström black hole is shown to be governed by a superconformal action that reduces to the superconformal mechanics of Fubini and Rabinovici in the limit of large black hole mass. † Onderzoeksdirecteur FWO, Belgium ⋆ On leave from DAMTP, Univ. of Cambridge, UK

We develop some properties of the non-BPS attractive STU black hole. Our principle result is the construction of exact solutions for the moduli, the metric and the vectors in terms of appropriate harmonic functions. In addition, we find a spherically-symmetric attractor carrying p0 (D6 brane) and qa (D2 brane) charges by solving the non-BPS attractor… (More)

- Klaus Behrndt, R . E . Kallosh, Joachim Rahmfeld, Marina Shmakova, Wing Kai Wong
- 1996

Klaus Behrndt, Renata Kallosh, Joachim Rahmfeld, Marina Shmakova, and Wing Kai Wong ∗ Humboldt-Universität, Institut für Physik, Invalidenstraße 110, 10115 Berlin, Germany Physics Department, Stanford University, Stanford, CA 94305-4060 Department of Physics, Texas A&M University , College Station, TX 77843 University of Tennessee, Knoxville, TN 37996… (More)

- Aaron S. Chou, R . E . Kallosh, J. Rahmfeld, S. Rey, Wing Kai Wong
- 1997

We study critical points of the BPS mass Z, the BPS string tension Zm, the black hole potential V and the gauged central charge potential P for M-theory compactified on Calabi-Yau three-folds. We first show that the stabilization equations for Z (determining the black hole entropy) take an extremely simple form in five dimensions as opposed to four… (More)

- R . E . Kallosh, Lev Kofman, Andrei Linde, Antoine Van Proeyen
- 2000

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 Fayet–Iliopoulos (FI) terms is clarified. The phase of this theory with spontaneously broken conformal symmetry gives various formulations of N = 1 supergravity… (More)

- R . E . Kallosh
- 1996

We derive new algebraic attractor equations describing supersymmetric flux vacua of type IIB string theory. The first term in these equations, proportional to the gravitino mass (the central charge), is similar to the attractor equations for moduli fixed by the charges near the horizon of the supersymmetric black holes. The second term does not have a… (More)