Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2006-09-28
PoSlat2006:063,2006
Physics
High Energy Physics
High Energy Physics - Lattice
Talk presented at Lattice 2006 Tucson, 7 pages, 5 figures, to be published in POS(LAT2006)063
Scientific paper
We investigate the dual superconductivity mechanism in the exceptional group $G_2$. This is a centerless group (no 't Hooft flux vortices are allowed) and we check for the presence of a magnetic monopole condensate in the confined phase by measuring on the lattice a disorder parameter related to the vacuum expectation value of an operator carrying magnetic charge. The behaviour of the disorder parameter is consistent with the dual superconductor picture. A first step of an analysis on the thermodynamical properties of the theory is conducted by mean of this operator.
Cossu Guido
D'Elia Marcella
Giacomo Adriano Di
Lucini Biagio
Pica Claudio
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