876 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Università degli Studi del Piemonte Orientale “Amedeo Avogadro”IT155 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT146 papers
- University of TurinIT123 papers
- Istituto Nazionale di Fisica NucleareIT109 papers
- European Organization for Nuclear ResearchCH102 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PadovaIT102 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT101 papers
- The Ohio State UniversityUS100 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT99 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT99 papers
- Sapienza University of RomeIT99 papers
- The University of TokyoJP99 papers
41 papers · 1 filter
Sign choices for orientifolds
Pedram Hekmati, Michael K. Murray, Richard J. Szabo +1
We analyse the problem of assigning sign choices to O-planes in orientifolds of type II string theory. We show that there exists a sequence of invariant -gerbes with ,…
S-duality, triangle groups and modular anomalies in N=2 SQCD
S. K. Ashok, E. Dell'Aquila, A. Lerda +1
We study N = 2 superconformal theories with gauge group SU(N) and 2N fundamental flavours in a locus of the Coulomb branch with a Z_N symmetry. In this special vacuum, we calculate…
Modular anomaly equations and S-duality in N=2 conformal SQCD
S. K. Ashok, M. Billó, E. Dell'Aquila +3
We use localization techniques to study the non-perturbative properties of an N=2 superconformal gauge theory with gauge group SU(3) and six fundamental flavours. The instanton cor…
Triproducts, nonassociative star products and geometry of R-flux string compactifications
Paolo Aschieri, Richard J. Szabo
We elucidate relations between different approaches to describing the nonassociative deformations of geometry that arise in non-geometric string theory. We demonstrate how to deriv…
Constitutive relations, off shell duality rotations and the hypergeometric form of Born-Infeld theory
Paolo Aschieri, Sergio Ferrara, Stefan Theisen
We review equivalent formulations of nonlinear and higher derivatives theories of electromagnetism exhibiting electric-magnetic duality rotations symmetry. We study in particular o…
Fermions, Wigs, and Attractors
L. G. C. Gentile, P. A. Grassi, A. Marrani +1
We compute the modifications to the attractor mechanism due to fermionic corrections. In N=2, D=4 supergravity, at the fourth order, we find a new contribution to the horizon value…
Modular anomaly equation, heat kernel and S-duality in N=2 theories
M. Billó, M. Frau, L. Gallot +2
We investigate epsilon-deformed N=2 superconformal gauge theories in four dimensions, focusing on the N=2* and Nf=4 SU(2) cases. We show how the modular anomaly equation obeyed by…
Non-perturbative aspects of gauge/gravity duality
Marco Billó, Marialuisa Frau, Luca Giacone +1
Recently we provided a microscopic derivation of the exact supergravity profile for the twisted scalar field emitted by systems of fractional D3-branes at a Z2 orbifold singularity…
A Note on the Field-Theoretical Description of Superfluids
L. Andrianopoli, R. D'Auria, P. A. Grassi +1
Recently, a Lagrangian description of superfluids attracted some interest from the fluid/gravity-correspondence viewpoint. In this respect, the work of Dubovksy et al. has proposed…
Entropy Current Formalism for Supersymmetric Theories
L. Andrianopoli, R. D'Auria, P. A. Grassi +1
The recent developments in fluid/gravity correspondence give a new impulse to the study of fluid dynamics of supersymmetric theories. In that respect, the entropy current formalism…
Deformed N=2 theories, generalized recursion relations and S-duality
Marco Billo, Marialuisa Frau, Laurent Gallot +2
We study the non-perturbative properties of N=2 super conformal field theories in four dimensions using localization techniques. In particular we consider SU(2) gauge theories, def…
Constitutive relations and Schroedinger's formulation of nonlinear electromagnetic theories
Paolo Aschieri, Sergio Ferrara
We present a systematic study of nonlinear and higher derivatives extensions of electromagnetism. We clarify when action functionals S[F] can be explicitly obtained from arbitrary…
OSp(1|4) supergravity and its noncommutative extension
Leonardo Castellani
We review the OSp(1|4)-invariant formulation of N=1, D=4 supergravity and present its noncommutative extension, based on a star-product originating from an abelian twist with defor…
Fermionic Wigs for BTZ Black Holes
L. G. C. Gentile, P. A. Grassi, A. Mezzalira
We compute the wig for the BTZ black hole, namely the complete non-linear solution of supergravity equations with all fermionic zero modes. We use a "gauge completion" method start…
Noncommutative gravity at second order via Seiberg-Witten map
Paolo Aschieri, Leonardo Castellani, Marija Dimitrijevic
We develop a general strategy to express noncommutative actions in terms of commutative ones by using a recently developed geometric generalization of the Seiberg-Witten map (SW ma…
Fermionic Wigs for AdS-Schwarzschild Black Holes
L. G. C. Gentile, P. A. Grassi, A. Mezzalira
We provide the metric, the gravitino fields and the gauge fields to all orders in the fermionic zero modes for D=5 and D=4, N=2 gauged supergravity solutions starting from non-extr…
Non-perturbative gauge/gravity correspondence in N=2 theories
M. Billó, M. Frau, F. Fucito +4
We derive the exact supergravity profile for the twisted scalar field emitted by a system of fractional D3 branes at a Z2 orbifold singularity supporting N=2 quiver gauge theories…
Extended gravity theories from dynamical noncommutativity
Paolo Aschieri, Leonardo Castellani
In this paper we couple noncommutative (NC) vielbein gravity to scalar fields. Noncommutativity is encoded in a star product between forms, given by an abelian twist (a twist with…
Noncommutative gauge fields coupled to noncommutative gravity
P. Aschieri, L. Castellani
We present a noncommutative (NC) version of the action for vielbein gravity coupled to gauge fields. Noncommutativity is encoded in a twisted star product between forms, with a set…
Non-perturbative gauge couplings from holography
Marco Billo, Marialuisa Frau, Luca Giacone +1
We show how D-instanton corrections modify the dilaton-axion profile emitted by an O7/D7 system turning it into the non-singular F-theory background which corresponds to the effect…
Noncommutative gravity coupled to fermions: second order expansion via Seiberg-Witten map
Paolo Aschieri, Leonardo Castellani
We use the Seiberg-Witten map (SW map) to expand noncommutative gravity coupled to fermions in terms of ordinary commuting fields. The action is invariant under general coordinate…
The exact 8d chiral ring from 4d recursion relations
Marco Billo', Marialuisa Frau, Laurent Gallot +1
We consider the local F-theory set-up corresponding to four D7 branes in type I' theory, in which the exact axio-dilaton background tau(z) is identified with the low-energy effecti…
Holographic non-perturbative corrections to gauge couplings
Marco Billo', Marialuisa Frau, Luca Giacone +1
We give a direct microscopic derivation of the F-theory background that corresponds to four D7 branes of type I' theory by taking into account the D-instanton contributions to the…
Non-commutative Einstein equations and Seiberg-Witten map
Paolo Aschieri, Elisabetta Di Grezia, Giampiero Esposito
The Seiberg--Witten map is a powerful tool in non-commutative field theory, and it has been recently obtained in the literature for gravity itself, to first order in non-commutativ…