8 papers
Non Local Observables and Confinement in BF Formulation of Yang-Mills Theory
Francesco Fucito, Maurizio Martellini, Mauro Zeni
The vev's of the magnetic order-disorder operators in QCD are found in an explicit calculation using the first order formulation of Yang-Mills theory.
The BF Formalism for Yang-Mills Theory and the `t Hooft Algebra
Maurizio Martellini, Mauro Zeni
The deformation of a topological field theory, namely the pure BF theory, gives the first order formulation of Yang-Mills theory; Feynman rules are given and the standard uv-behavi…
A New Nonperturbative Approach to QCD by BF Theory
Maurizio Martellini, Mauro Zeni, Francesco Fucito
Yang-Mills theory in the first order formalism appears as the deformation of a topological field theory, the pure BF theory. In this approach new non local observables are inherite…
The Quantization of Anomalous Gauge Field Theory
M. Martellini, M. Spreafico, K. Yoshida
We discuss the so called gauge invariant quantization of anomalous gauge field theory, originally due to Faddeev and Shatashvili. It is pointed out that the further non invariance…
BF Theories and 2-knots
P. Cotta-Ramusino, M. Martellini
We discuss the relations between (topological) quantum field theories in 4 dimensions and the theory of 2-knots (embedded 2-spheres in a 4-manifold). The so-called BF theories allo…
A continuum approach to 2D-Quantum Gravity for c1
M. Martellini, M. Spreafico, K. Yoshida
Two dimensional induced quantum gravity with matter central charge is studied taking a careful consideration of both diffeomorphism and Weyl symmetries . It is shown that, fo…