38 citations · 156 across the 16 of their papers we have counts for
16 papers · 1 filter
Area preserving diffeomorphisms and Yang-Mills theory in two noncommutative dimensions
A. Bassetto, G. De Pol, A. Torrielli +1
We present some evidence that noncommutative Yang-Mills theory in two dimensions is not invariant under area preserving diffeomorphisms, at variance with the commutative case. Stil…
N=1 Super Yang-Mills Domain Walls via The Extended Veneziano Yankielowicz Theory
P. Merlatti, F. Sannino, G. Vallone +1
We investigate the vacuum structure of pure SU(N) N=1 super Yang-Mills. The theory is expected to possess N vacua with associated domain walls. We show that the newly extended vers…
Planarity in Noncommutative Gauge Theories
Antonio Bassetto, Federica Vian
Planarity was introduced by 't Hooft in his topological classification of diagrams in the large-N limit of U(N) gauge theories. Planarity also occurs in noncommutative field theori…
Two-dimensional non-commutative Yang-Mills theory: coherent effects in open Wilson line correlators
A. Bassetto, G. De Pol, F. Vian
A perturbative calculation of the correlator of three parallel open Wilson lines is performed for the U(N) theory in two non-commutative space-time dimensions. In the large-N plana…
Wilson line correlators in two-dimensional noncommutative Yang-Mills theory
A. Bassetto, F. Vian
We study the correlator of two parallel Wilson lines in two-dimensional noncommutative Yang-Mills theory, following two different approaches. We first consider a perturbative expan…
On the unitarity of quantum gauge theories on non-commutative spaces
A. Bassetto, L. Griguolo, G. Nardelli +1
We study the perturbative unitarity of non-commutative quantum Yang-Mills theories, extending previous investigations on scalar field theories to the gauge case where non-locality…
Topological contributions in two-dimensional Yang-Mills theory: from group averages to integration over algebras
A. Bassetto, S. Nicoli, F. Vian
We show that keeping only the topologically trivial contribution to the average of a class function on U(N) amounts to integrating over its algebra. The goal is reached first by de…
Multiple vacua in two-dimensional Yang-Mills theory
A. Bassetto, L. Griguolo, F. Vian
Two-dimensional SU(N) Yang-Mills theory is endowed with a non-trivial vacuum structure (k-sectors). The presence of k-sectors modifies the energy spectrum of the theory and its ins…
Light-front vacuum and instantons in two dimensions
A. Bassetto, L. Griguolo, F. Vian
We review several aspects of Yang-Mills theory (YMT) in two dimensions, related to its perturbative and topological properties. Consistency between light-front and equal-time formu…
Wilson loops in the adjoint representation and multiple vacua in two-dimensional Yang-Mills theory
A. Bassetto, L. Griguolo, F. Vian
with fermions in the adjoint representation is invariant under and thereby is endowed with a non-trivial vacuum structure (k-sectors). The static potential betw…
Two-dimensional QCD and instanton contribution
A. Bassetto, L. Griguolo, F. Vian
In these notes Yang-Mills theories in 1+1 dimensions are reviewed. Instantons on a sphere prove to be -in the decompactification limit- the key issue to clarify an old controversy…
Instanton contributions to Wilson loops with general winding number in two dimensions and the spectral density
A. Bassetto, L. Griguolo, F. Vian
The exact expression for Wilson loop averages winding n times on a closed contour is obtained in two dimensions for pure U(N) Yang-Mills theory and, rather surprisingly, it display…
Quantum Field Theories with Symmetries in the Wilsonian Exact Renormalization Group
F. Vian
The purpose of the present thesis is the implementation of symmetries in the Wilsonian Exact Renormalization Group (ERG) approach. After recalling how the ERG can be introduced in…
Supersymmetric gauge theories in the exact renormalization group approach
Federica Vian
In these notes the exact renormalization group formulation of the scalar theory is briefly reviewed. This regularization scheme is then applied to supersymmetric theories. In case…
Wilson Renormalization Group for Supersymmetric Gauge Theories and Gauge Anomalies
M. Bonini, F. Vian
We extend the Wilson renormalization group (RG) to supersymmetric theories. As this regularization scheme preserves supersymmetry, we exploit the superspace technique. To set up th…
Chiral gauge theories and anomalies in the Wilson renormalization group approach
M. Bonini, F. Vian
We extend the Wilson renormalization group (RG) formulation to chiral gauge theories and show that local gauge symmetry can be implemented by a suitable choice of the RG flow bound…