H. Fort

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19942000

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hep-th2000

Comment on "First Order Transition in the Ginzburg-Landau Model"

H. Fort

I present clear evidences that for $d$ =2 a first order transition takes place when the coherence length $ξ$ becomes of the order of the lattice spacing and that this is connected w…

hep-th1997

The U(1) and Strong CP Problem From the Loop Formulation Perspective

H. Fort, R. Gambini

We show how the gauge invariant formulation of QCD in terms of loops is free from a hidden $θ$ parameter and offers an alternative way to solve the $U (1)_{A}$ puzzle.

hep-th1994

Matter Fields in the Loop Representation of the Partition Function

J. M. Aroca, H. Fort

We present the extension of the Lagrangian $l oo p$ representation in such a way to introduce matter fields. The partition function of lattice compact U(1) Gauge-Higgs model is expre…

hep-th1994

Loop Representation of the Partition Function of Lattice U(1) Gauge Theory

J. M. Aroca, H. Fort

We introduce in a natural and straigthforward way the $l oo p$ (Lagrangian) $r e p r ese n t a t i o n$ for the partition function of pure compact lattice QED. The corresponding classical latti…