340 citations · 1k across the 16 of their papers we have counts for
5 papers · 2 filters
Duality Versus Supersymmetry and Compactification
E. Bergshoeff, R. Kallosh, T. Ortín
We study the interplay between T-duality, compactification and supersymmetry. We prove that when the original configuration has unbroken space-time supersymmetries, the dual config…
Exact SU(2)*U(1) Stringy Black Holes
R. Kallosh, T. Ortin
Extreme magnetic dilaton black holes are promoted to exact solutions of heterotic string theory with unbroken supersymmetry. With account taken of alpha' corrections this is accomp…
Supersymmetry and Stationary Solutions in Dilaton-Axion Gravity
Renata Kallosh, David Kastor, Tomas Ortin +1
New stationary solutions of -dimensional dilaton-axion gravity are presented, which correspond to the charged Taub-NUT and Israel-Wilson-Perjes (IWP) solutions of Einstein-Maxwe…
Black-Hole-Wave Duality in String Theory
Eric Bergshoeff, Renata Kallosh, Tomas Ortin
Extreme 4-dimensional dilaton black holes embedded into 10-dimensional geometry are shown to be dual to the gravitational waves in string theory. The corresponding gravitational wa…
Sl(2,R)-Duality Covariance of Killing Spinors in Axion-Dilaton Black Holes
Tomás Ortín
Under electric-magnetic duality transformations the Bogomolnyi bound of dilaton-axion black holes is known to be invariant. In this paper we show that this invariance cor…