53 citations · 261 across the 14 of their papers we have counts for
14 papers
Shadow multiplets in AdS_4/CFT_3 and the super-Higgs mechanism: hints of new shadow supergravities
M. Billo`, D. Fabbri, P. Fre` +2
We discuss a general pairing that occurs in compactifications of M-theory on AdS_4 x X^7 backgrounds between massless ultra short multiplets and their massive shadows, namely certa…
Rings of short N=3 superfields in three dimensions and M-theory on AdS_4 x N^{0,1,0}
M. Billo`, D. Fabbri, P. Fre` +2
In this paper we investigate three-dimensional superconformal gauge theories with N=3 supersymmetry. Independently from specific models, we derive the shortening conditions for uni…
Matrix strings from generalized Yang-Mills theory on arbitrary Riemann surfaces
M. Billo', A D'Adda, P. Provero
We quantize pure 2d Yang-Mills theory on an arbitrary Riemann surface in the gauge where the field strength is diagonal. Twisted sectors originate, as in Matrix string theory, from…
The 0-brane action in a general D=4 supergravity background
Marco Billo, Sergio Cacciatori, Frederik Denef +3
We begin by presenting the superparticle action in the background of N=2, D=4 supergravity coupled to n vector multiplets interacting via an arbitrary special Kahler geometry. Our…
2D Yang-Mills Theory as a Matrix String Theory
M. Billo', M. Caselle, A. D'Adda +1
Quantization of two-dimensional Yang-Mills theory on a torus in the gauge where the field strength is diagonal leads to twisted sectors that are completely analogous to the ones th…
Ramond-Ramond (boundary) states
M. Billo, R. Russo
The description of D-branes as boundary states for type II string theories (in the covariant formulation) requires particular care in the R-R sector. Also the vertices for R-R pote…
The rigid limit in Special Kahler geometry; From K3-fibrations to Special Riemann surfaces: a detailed case study
Marco Billo, Frederik Denef, Pietro Fre +4
The limiting procedure of special Kahler manifolds to their rigid limit is studied for moduli spaces of Calabi-Yau manifolds in the neighbourhood of certain singularities. In two e…
Special geometry of Calabi-Yau compactifications near a rigid limit
Marco Billo, Frederik Denef, Pietro Fre +4
We discuss, in the framework of special Kahler geometry, some aspects of the "rigid limit" of type IIB string theory compactified on a Calabi-Yau threefold. We outline the general…
A detailed case study of the rigid limit in Special Kähler geometry using K3
Marco Billo, Frederik Denef, Pietro Fre +4
This is a résumé of an extensive investigation of some examples in which one obtains the rigid limit of N=2 supergravity by means of an expansion around singular points in the modu…
A Search for Non-Perturbative Dualities of Local Yang--Mills Theories from Calabi--Yau Threefolds
A. Ceresole, M. Billo', R. D'Auria +5
The generalisation of the rigid special geometry of the vector multiplet quantum moduli space to the case of supergravity is discussed through the notion of a dynamical Calabi--Yau…
R-Symmetry and the Topological Twist of N=2 Effective Supergravities of Heterotic Strings
M. Billo', R. D'Auria, S. Ferrara +3
We discuss R-symmetries in locally supersymmetric N=2 gauge theories coupled to hypermultiplets which can be thought of as effective theories of heterotic superstring models. In th…
HyperKähler quotients and N=4 gauge theories in D=2
M. Billo', P. Fré
We consider certain N=4 supersymmetric gauge theories in D=2 coupled to quaternionic matter multiplets in a minimal way. These theories admit as effective theories sigma-models on…
N=4 Versus N=2 Phases, HyperkÄhler Quotients and the 2D Topological Twist
Marco Billo', Pietro Fre'
We consider N=2 and N=4 supersymmetric gauge theories in two-dimensions, coupled to matter multiplets. In analogy with the N=2 case also in the N=4 case one can introduce Fayet-Ili…
ALE manifolds and Conformal Field Theory
D. Anselmi, M. Billó, P. Fré +2
We address the problem of constructing the family of (4,4) theories associated with the sigma-model on a parametrized family of Asymptotically Locally Euclidean (ALE)…