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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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19 papers · 2 filters
AdS_2 Supergravity and Superconformal Quantum Mechanics
Marco Astorino, Sergio Cacciatori, Dietmar Klemm +1
We investigate the asymptotic dynamics of topological anti-de Sitter supergravity in two dimensions. Starting from the formulation as a BF theory, it is shown that the AdS_2 bounda…
Noncommutative deformation of four dimensional Einstein gravity
Matteo A. Cardella, Daniela Zanon
We construct a model for noncommutative gravity in four dimensions, which reduces to the Einstein-Hilbert action in the commutative limit. Our proposal is based on a gauge formulat…
Comments on the Equivalence between Chern-Simons Theory and Topological Massive Yang-Mills Theory in 3D
Andrea Quadri
The classical formal equivalence upon a redefinition of the gauge connection between Chern-Simons theory and topological massive Yang-Mills theory in three-dimensional Euclidean sp…
On the SL(2,R) symmetry in Yang-Mills Theories in the Landau, Curci-Ferrari and Maximal Abelian Gauge
D. Dudal, V. E. R. Lemes, M. Picariello +3
The existence of a SL(2,R) symmetry is discussed in SU(N) Yang-Mills in the maximal Abelian Gauge. This symmetry, also present in the Landau and Curci-Ferrari gauge, ensures the ab…
Perturbative Computation of Glueball Superpotentials
R. Dijkgraaf, M. T. Grisaru, C. S. Lam +2
Using N=1 superspace techniques in four dimensions we show how to perturbatively compute the superpotential generated for the glueball superfield upon integrating out massive charg…
BPS equations in N=2, D=5 supergravity with hypermultiplets
Sergio L. Cacciatori, Alessio Celi, Daniela Zanon
With the general aim to classify BPS solutions in N=2, D=5 supergravities interacting with an arbitrary number of vector, tensor and hypermultiplets, here we begin considering the…
Noncommutative Electrodynamics
G. Berrino, S. L. Cacciatori, A. Celi +2
In this paper we define a causal Lorentz covariant noncommutative (NC) classical Electrodynamics. We obtain an explicit realization of the NC theory by solving perturbatively the S…
Ghost condensates in Yang-Mills theories in nonlinear gauges
A. R. Fazio, V. E. R. Lemes, M. Picariello +2
Ghost condensates of dimension two are analysed in a class of nonlinear gauges in pure Yang-Mills theories. These condensates are related to the breaking of the SL(2,R) symmetry, p…
Exact anomalous dimensions of {\cal N}=4 Yang-Mills operators with large R charge
Alberto Santambrogio, Daniela Zanon
In a {\cal N}=1 superspace formulation of {\cal N}=4 Yang-Mills theory we obtain the anomalous dimensions of chiral operators with large R charge J \to \infty keeping g^2 N/J^2 fin…
Non-protected operators in N=4 SYM and multiparticle states of AdS_5 SUGRA
G. Arutyunov, S. Penati, A. C. Petkou +2
We study a class of non-protected local composite operators which occur in the R symmetry singlet channel of the OPE of two stress-tensor multiplets in {\cal N}=4 SYM. At tree leve…
De Sitter Gravity and Liouville Theory
Dietmar Klemm, Luciano Vanzo
We show that the spectrum of conical defects in three-dimensional de Sitter space is in one-to-one correspondence with the spectrum of vertex operators in Liouville conformal field…
Noncommutative Gravity in two Dimensions
S. Cacciatori, A. H. Chamseddine, D. Klemm +3
We deform two-dimensional topological gravity by making use of its gauge theory formulation. The obtained noncommutative gravity model is shown to be invariant under a class of tra…
Noncommutative AdS Supergravity in three Dimensions
S. Cacciatori, L. Martucci
In this paper we propose a generalization of N=4 three dimensional AdS supergravity to the noncommutative case. This is a supersymmetric version of the results presented in hep-th/…
The Asymptotic Dynamics of two-dimensional (anti-)de Sitter Gravity
Mauro Brigante, Sergio Cacciatori, Dietmar Klemm +1
We show that the asymptotic dynamics of two-dimensional de Sitter or anti-de Sitter Jackiw-Teitelboim (JT) gravity is described by a generalized two-particle Calogero-Sutherland mo…
An Approach to the Equivalence Theorem by the Slavnov-Taylor Identities
Ruggero Ferrari, Marco Picariello, Andrea Quadri
We discuss the Equivalence Theorem (ET) in the BRST formalism. The existence of a local inverse of the field transformation (at least as a formal power expansion) suggests a formul…
Remarks on the BRST Cohomology of Supersymmetric Gauge Theories
V. E. R. Lemes, M. Picariello, M. S. Sarandy +1
The supersymmetric version of the descent equations following from the Wess-Zumino consistency condition is discussed. A systematic framework in order to solve them is proposed.
Nonabelian Born-Infeld from Super-Yang-Mills effective action
A. Refolli, A. Santambrogio, N. Terzi +1
We discuss recent results on one-loop contributions to the effective action in {\cal N}=4 supersymmetric Yang-Mills theory in four dimensions. Contributions with five external vect…
Algebraic Properties of BRST Coupled Doublets
Andrea Quadri
We characterize the dependence on doublets of the cohomology of an arbitrary nilpotent differential s (including BRST differentials and classical linearized Slavnov-Taylor (ST) ope…
Noncommutative Einstein-AdS Gravity in three Dimensions
S. Cacciatori, D. Klemm, L. Martucci +1
We present a Lorentzian version of three-dimensional noncommutative Einstein-AdS gravity by making use of the Chern-Simons formulation of pure gravity in 2+1 dimensions. The deform…