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Dual Superconductivity in G2 group

G. Cossu·M. D'Elia·A. Di Giacomo·B. Lucini·C. Pica
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Abstract

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.

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G. Cossu, M. D'Elia, A. Di Giacomo, B. Lucini, C. Pica. 2006-09-28. Dual Superconductivity in G2 group. https://arxiv.org/abs/hep-lat/0609061

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