On Subextensive Corrections to Fluid Dynamics from Gravity (2009)
Cardoso, G. L., Dall'Agata, G., Grass, V.
We use the fluid-gravity correspondence to compute subextensive corrections, proportional to the shear tensor, to the energy-momentum tensor of fluids on three-spheres. The dual configurations we...
The mixed black hole partition function for the STU model (2008)
Cardoso, G. L., David, J. R., De Wit, B., Mahapatra, S.
We evaluate the mixed partition function for dyonic BPS black holes using the recently proposed degeneracy formula for the STU model. The result factorizes into the OSV mixed partition function times...
Subleading and non-holomorphic corrections to N=2 BPS black hole entropy (2008)
Cardoso, G. L., De Wit, B., Mahapatra, S.
BPS black hole degeneracies can be expressed in terms of an inverse Laplace transform of a partition function based on a mixed electric/magnetic ensemble, which involves a non-trivial integration...
On five-dimensional non-extremal charged black holes and FRW cosmology (2008)
We consider static non-extremal charged black hole solutions in the context of N=2 gauged supergravity theories in five dimensions, and we show that they satisfy first-order flow equations. Then we...
PROCEEDINGS Supersymmetric black hole solutions with R
Black hole entropy functions and attractor equations (2006)
Cardoso, G. L., De Wit, B., Mahapatra, S.
The entropy and the attractor equations for static extremal black hole solutions follow from a variational principle based on an entropy function. In the general case such an entropy function can be...
Black hole partition functions and duality (2006)
Cardoso, G. L., De Wit, B., Käppeli, J., Mohaupt, T.
The macroscopic entropy and the attractor equations for BPS black holes in four-dimensional N=2 supergravity theories follow from a variational principle for a certain `entropy function'. We present...
Black hole partition functions and duality (2006)
Cardoso, G. L., De Wit, Bernard, Käppeli, Jürg, Mohaupt, Thomas
The macroscopic entropy and the attractor equations for BPS black holes in four-dimensional N=2 supergravity theories follow from a variational principle for a certain `entropy function'. We present...
Asymptotic degeneracy of dyonic N=4 string states and black hole entropy (2004)
Cardoso, G. L., De Wit, B., Käppeli, J., Mohaupt, T.
It is shown that the asymptotic growth of the microscopic degeneracy of BPS dyons in four-dimensional N=4 string theory captures the known corrections to the macroscopic entropy of four-dimensional...
Gaugino Condensation and Generation of Supersymmetric 3-Form Flux (2004)
Cardoso, G. L., Curio, G., Dall'Agata, G., Lust, D.
We extend the linearised solution of Polchinski and Strassler describing the supergravity dual of the N=1* gauge theory. By analysing the equations of motion of type IIB supergravity at cubic order...
Asymptotic degeneracy of dyonic N=4 string states and black hole entropy (2004)
Cardoso,G.L., De Wit,B., Käppeli,J., Mohaupt,T.
It is shown that the asymptotic growth of the microscopic degeneracy of BPS dyons in four-dimensional N=4 string theory captures the known corrections to the macroscopic entropy of four-dimensional...
Asymptotic degeneracy of dyonic N=4 string states and black hole entropy (2004)
Cardoso, G. L., De Wit, Bernard, Käppeli, Jürg, Mohaupt, Thomas
It is shown that the asymptotic growth of the microscopic degeneracy of BPS dyons in four-dimensional N=4 string theory captures the known corrections to the macroscopic entropy of four-dimensional...
Gaugino Condensation and Generation of Supersymmetric 3-Form Flux (2004)
Cardoso, G. L., Curio, G., Dall'Agata, G., Lust, D.
We extend the linearised solution of Polchinski and Strassler describing the supergravity dual of the N=1* gauge theory. By analysing the equations of motion of type IIB supergravity at cubic order...
Heterotic String Theory on non-Kaehler Manifolds with H-Flux and Gaugino Condensate (2003)
Cardoso, G. L., Curio, G., Dall'Agata, G., Lust, D.
We discuss compactifications of heterotic string theory to four dimensions in the presence of H-fluxes, which deform the geometry of the internal manifold, and a gaugino condensate which breaks...
BPS Action and Superpotential for Heterotic String Compactifications with Fluxes (2003)
Cardoso, G. L., Curio, G., Dall'Agata, G., Lust, D.
We consider N =1 compactifications to four dimensions of heterotic string theory in the presence of fluxes. We show that up to order O(\alpha'^2) the associated action can be written as a sum of...
Non-Kaehler String Backgrounds and their Five Torsion Classes (2002)
Cardoso, G. L., Curio, G., Dall'Agata, G., Lust, D., Manousselis, P., Zoupanos, G.
We discuss the mathematical properties of six--dimensional non--K\"ahler manifolds which occur in the context of ${\cal N}=1$ supersymmetric heterotic and type IIA string compactifications with...
Examples of stationary BPS solutions in N=2 supergravity theories with R^2-interactions (2000)
Cardoso, G. L., De Wit, B., Käppeli, J., Mohaupt, T.
We discuss explicit examples of BPS solutions in four-dimensional N=2 supergravity with R^2-interactions. We demonstrate how to construct solutions by iteration. Generically, the presence of...
Stationary BPS Solutions in N=2 Supergravity with R^2-Interactions (2000)
Cardoso, G. L., De Wit, B., Käppeli, J., Mohaupt, T.
We analyze a broad class of stationary solutions with residual N=1 supersymmetry of four-dimensional N=2 supergravity theories with terms quadratic in the Weyl tensor. These terms are encoded in a...
Supersymmetric black hole solutions with $R^2$-interactions (2000)
Cardoso, G. L., De Wit, B., Käppeli, J., Mohaupt, T.
We present a class of static supersymmetric multi-center black hole solutions arising in four-dimensional N=2 supergravity theories with terms quadratic in the Weyl tensor. We also comment on...
Macroscopic entropy formulae and non-holomorphic corrections for supersymmetric black holes (2000)
De Wit, Bernard, Cardoso, G. L., Mohaupt, Thomas
In four-dimensional N=2 compactifications of string theory or M-theory, modifications of the Bekenstein-Hawking area law for black hole entropy in the presence of higher-derivative interactions are...
Perturbative gravitational couplings and Siegel modular forms in $D=4,N=2$ string models (1996)
We consider four-parameter $D=4,N=2$ string models with Hodge numbers $(4,214- 12n)$ and $(4,148)$, and we express their perturbative Wilsonian gravitational coupling $F_1$ in terms of Siegel modular...
Black hole partition functions and duality
Cardoso,G.L., De Wit,B., Käppeli,J., Mohaupt,T.
The macroscopic entropy and the attractor equations for BPS black holes in four-dimensional N=2 supergravity theories follow from a variational principle for a certain `entropy function'. We present...