125 citations · 541 across the 39 of their papers we have counts for
34 papers · 1 filter
Dualities and models in various dimensions
Enrique F. Moreno, Fidel A. Schaposnik
Working within the path-integral framework we first establish a duality between the partion functions of two gauge theories with a theta term in space-time dimensions.…
Bosonization of fermions coupled to topologically massive gravity
Eduardo Fradkin, Enrique F. Moreno, Fidel A. Schaposnik
We establish a duality between massive fermions coupled to topologically massive gravity (TGM) in space-time dimensions and a purely gravity theory which also will turn out t…
Dualities and bosonization of massless fermions in three dimensional space-time
E. F. Moreno, F. A. Schaposnik
We study the bosonization of massless fermions in three-dimensional space-time. Using the path-integral approach as well as the operator formalism, we investigate new duality relat…
Fermions in an AdS3 Black Hole Background and the Gauge-Gravity Duality
Cesar D. Fosco, Enrique F. Moreno, Fidel A. Schaposnik
We study a model whose dynamics is determined by a Maxwell Lagrangian coupled to a complex scalar and a Dirac fermion field, in an black hole background. Our study is perfo…
A Note on Holography and Phase Transitions
Marc Bellon, Enrique F. Moreno, Fidel A. Schaposnik
Focusing on the connection between the Landau theory of second order phase transitions and the holographic approach to critical phenomena, we study diverse field theories in an ant…
R-symmetry and Supersymmetry Breaking at Finite Temperature
E. F. Moreno, F. A. Schaposnik
We analyze the spontaneous symmetry breaking at finite temperature for the simple O'Raifeartaigh-type model introduced in [1] in connection with spontaneous supersymmetry…
Local and Semi-local Vortices in Yang-Mills-Chern-Simons model
M. Buck, E. F. Moreno, F. A. Schaposnik
We study BPS vortex configurations in three dimensional U(N) Yang-Mills theories with Chern-Simons interaction coupled to scalar fields carrying flavor. We consider two kind of con…
BPS Equations and the Stress Tensor
E. F. Moreno, F. A. Schaposnik
We exploit the relationship between the space components of the energy-momentum tensor and the supercurrent to discuss the connection between the BPS equations and the vanishing of…
Non-Abelian Chern-Simons Vortices
G. S. Lozano, D. Marques, E. F. Moreno +1
We consider the bosonic sector of a N=2 supersymmetric Chern-Simons-Higgs theory in 2+1 dimensions. The gauge group is U(1)xU(N) and has N_f flavors of fundamental matter fields. T…
Para-Grassmann Variables and Coherent States
Daniel C. Cabra, Enrique F. Moreno, Adrian Tanasa
The definitions of para-Grassmann variables and q-oscillator algebras are recalled. Some new properties are given. We then introduce appropriate coherent states as well as their du…
Spherically symmetric monopoles in noncommutative space
E. F. Moreno
We construct a spherically symmetric noncommutative space in three dimensions by foliating the space with concentric fuzzy spheres. We show how to construct a gauge theory in this…
Dyons in N=4 Gauged Supergravity
D. H. Correa, A. D. Medina, E. F. Moreno +1
We study monopole and dyon solutions to the equations of motion of the bosonic sector of N = 4 gauged supergravity in four dimensional space-time. A static, spherically symmetric a…
A note on Gaussian integrals over paragrassmann variables
Leticia F Cugliandolo, Gustavo S Lozano, Enrique F Moreno +1
We discuss the generalization of the connection between the determinant of an operator entering a quadratic form and the associated Gaussian path-integral valid for grassmann varia…
Some Noncommutative Multi-instantons from Vortices in Curved Space
D. H. Correa, E. F. Moreno, F. A. Schaposnik
We construct U(2) noncommutative multi-instanton solutions by extending Witten's ansatz [1] which reduces the problem of cylindrical symmetry in four dimensions to that of a set of…
Comments on the U(2) Noncommutative Instanton
D. H. Correa, G. S. Lozano, E. F. Moreno +1
We discuss the 't Hoof ansatz for instanton solutions in noncommutative U(2) Yang-Mills theory. We show that the extension of the ansatz leading to singular solutions in the commut…
Self-dual Chern-Simons solitons in noncommutative space
G. S. Lozano, E. F. Moreno, F. A. Schaposnik
We construct exact soliton solutions to the Chern-Simons-Higgs system in noncommutative space, for non-relativistic and relativistic models. In both cases we find regular vortex-li…
Monopole Solutions in AdS Space
A. R. Lugo, E. F. Moreno, F. A. Schaposnik
We find monopole solutions for a spontaneously broken SU(2)-Higgs system coupled to gravity in asymptotically anti-de Sitter space. We present new analytic and numerical results di…
Monopoles in non-Abelian Dirac-Born-Infeld Theory
N. Grandi, E. F. Moreno, F. A. Schaposnik
We investigate monopole solutions for the Born-Infeld Higgs system. We analyze numerically these solutions and compare them with the standard 't Hooft-Polyakov monopoles. We also d…
Barrier penetration in 1+1-dimensional O(n) sigma models
E. Moreno, P. Orland
The O(n) nonlinear sigma model in 1+1 dimensions is examined as quantum mechanics on an infinite-dimensional configuration space. Two metrics are defined in this space. One of thes…
On the Renormalization of Hamiltonians
G. Alexanian, E. F. Moreno
We introduce a novel method for the renormalization of the Hamiltonian operator in Quantum Field Theory in the spirit of the Wilson renormalization group. By a series of unitary tr…
Renormalization of the Hamiltonian and a geometric interpretation of asymptotic freedom
G. Alexanian, E. F. Moreno
Using a novel approach to renormalization in the Hamiltonian formalism, we study the connection between asymptotic freedom and the renormalization group flow of the configuration s…
Quasiparticle operators with non-Abelian braiding statistics
Daniel C. Cabra, Enrique F. Moreno, Gerardo L. Rossini
We study the gauge invariant fermions in the fermion coset representation of Wess-Zumino-Witten models which create, by construction, the physical excitations (quasiparti…
Electrically Charged Vortex Solution in Born-Infeld Theory
E. Moreno, C. Nuñez, F. A. Schaposnik
We obtain electrically charged vortex solutions for the Born-Infeld Higgs system with a Chern Simons term. We analyse numerically these solutions, comparing their properties with t…
Potential Topography and Mass Generation
Maxime Kudinov, Enrique Moreno, Peter Orland
We describe an approach to understanding exponential decay of correlation functions in asymptotically free theories. This approach is systematic; it does not start from any conject…