14.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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22 papers · 2 filters
The Robustness of n_s < 0.95 in Racetrack Inflation
Ph. Brax, Stephen C. Davis, M. Postma
A spectral index n_s < 0.95 appears to be a generic prediction of racetrack inflation models. Reducing a general racetrack model to a single-field inflation model with a simple pot…
On the renormalization group flow of f(R)-gravity
Pedro F. Machado, Frank Saueressig
We use the functional renormalization group equation for quantum gravity to construct a non-perturbative flow equation for modified gravity theories of the form $S = \int d^dx \sqr…
Scattering of Long Folded Strings and Mixed Correlators in the Two-Matrix Model
J. -E. Bourgine, K. Hosomichi, I. Kostov +1
We study the interactions of Maldacena's long folded strings in two-dimensional string theory. We find the amplitude for a state containing two long folded strings to come and go b…
Recent results in four-dimensional non-perturbative string theory
Frank Saueressig
We review recent progress in understanding non-perturbative instanton corrections to the hypermultiplet moduli space in type II string compactifications on Calabi-Yau threefolds.
D-term Uplifted Racetrack Inflation
Philippe Brax, Anne-Christine Davis, Stephen C. Davis +2
It is shown that racetrack inflation can be implemented in a moduli stabilisation scenario with a supersymmetric uplifting D-term. The resulting model is completely described by an…
Topological expansion and boundary conditions
Bertrand Eynard, Nicolas Orantin
In this article, we compute the topological expansion of all possible mixed-traces in a hermitian two matrix model. In other words we give a recipe to compute the number of discret…
Deep inelastic scattering off a N=4 SYM plasma at strong coupling
Y. Hatta, E. Iancu, A. H. Mueller
By using the AdS/CFT correspondence we study the deep inelastic scattering of an R-current off a N=4 supersymmetric Yang-Mills (SYM) plasma at finite temperature and strong couplin…
Sinh-Gordon Boundary TBA and Boundary Liouville Reflection Amplitude
Z. Bajnok, Chaiho Rim, Al. Zamolodchikov
The ground state energy of the sinh-Gordon model defined on the strip is studied using the boundary thermodynamic Bethe ansatz equation. Its ultraviolet (small width of the strip)…
No-scale supersymmetry breaking vacua and soft terms with torsion
Pablo G. Cámara, Mariana Graña
We analyze the conditions to have no-scale supersymmetry breaking solutions of type IIA and IIB supergravity compactified on manifolds of SU(3)-structure. The supersymmetry is spon…
Deep inelastic scattering at strong coupling from gauge/string duality : the saturation line
Y. Hatta, E. Iancu, A. H. Mueller
For gauge theories which admit a dual string description, we analyze deep inelastic scattering at strong 't Hooft coupling and high energy, in the vicinity of the unitarity limit.…
Quantum Theory on Lobatchevski Spaces
Ugo Moschella, Richard Schaeffer
In this paper we set up a general formalism to deal with quantum theories on a Lobatchevski space, i.e. a spatial manifold that is homogeneous, isotropic and has negative curvature…
Warping and F-term uplifting
Philippe Brax, Anne-Christine Davis, Stephen C. Davis +2
We analyse the effective supergravity model of a warped compactification with matter on D3 and D7-branes. We find that the main effect of the warp factor is to modify the F-terms w…
Bubbles on Manifolds with a U(1) Isometry
Iosif Bena, Nikolay Bobev, Nicholas P. Warner
We investigate the construction of five-dimensional, three-charge supergravity solutions that only have a rotational U(1) isometry. We show that such solutions can be obtained as w…
Plumbing the Abyss: Black Ring Microstates
Iosif Bena, Chih-Wei Wang, Nicholas P. Warner
We construct the first smooth, horizonless ``microstate geometries'' that have the same charges, dipole charges and angular momenta as a BPS black ring whose horizon is macroscopic…
Dynamics of Baryons from String Theory and Vector Dominance
Deog Ki Hong, Mannque Rho, Ho-Ung Yee +1
We consider a holographic model of QCD from string theory, a la Sakai and Sugimoto, and study baryons. In this model, mesons are collectively realized as a five-dimensional $U(N_F…
(2+1)-Dimensional Quantum Gravity as the Continuum Limit of Causal Dynamical Triangulations
D. Benedetti, R. Loll, F. Zamponi
We perform a non-perturbative sum over geometries in a (2+1)-dimensional quantum gravity model given in terms of Causal Dynamical Triangulations. Inspired by the concept of triangu…
Strong coupling limit of Bethe Ansatz equations
Ivan Kostov, Didina Serban, Dmytro Volin
We develop a method to analyze the strong coupling limit of the Bethe ansatz equations supposed to give the spectrum of anomalous dimensions of the planar gauge theory…
Chiral Dynamics of Baryons from String Theory
Deog Ki Hong, Mannque Rho, Ho-Ung Yee +1
We study baryons in an AdS/CFT model of QCD by Sakai and Sugimoto, realized as small instantons with fundamental string hairs. We introduce an effective field theory of the baryons…
Three-Loop Superfiniteness of N=8 Supergravity
Z. Bern, J. J. Carrasco, L. J. Dixon +3
We construct the three-loop four-point amplitude of N=8 supergravity using the unitarity method. The amplitude is ultraviolet finite in four dimensions. Novel cancellations, not pr…
A correspondence between H3+ WZW and Liouville theories on discs
Kazuo Hosomichi
We discuss how the disc correlators of H3+ WZW model are determined in terms of those of Liouville theory.
Permutation Orientifolds of Gepner Models
Kazuo Hosomichi
In tensor products of a left-right symmetric CFT, one can define permutation orientifolds by combining orientation reversal with involutive permutation symmetries. We construct the…
Associative-algebraic approach to logarithmic conformal field theories
N. Read, H. Saleur
We set up a strategy for studying large families of logarithmic conformal field theories by using the enlarged symmetries and non--semi-simple associative algebras appearing in the…