We address the issue why the number and the location of magnetic monopoles detected on lattice configurations are gauge dependent, in contrast with the physical expectation that monopoles have a gauge-invariant status. By use of the non-Abelian Bianchi identities we show that monopoles are gaugeinvariant, but the efficiency of the technique usually adopted to detect them depends on the choice of the gauge in a well understood way. In particular we have studied a class of gauges which interpolate between the Maximal Abelian gauge, where all monopoles are observed, and the Landau gauge, where all monopoles escape detection.
|Autori:||BONATI C; D'ELIA M; DI GIACOMO A|
|Titolo:||Detecting monopoles on the lattice|
|Anno del prodotto:||2010|
|Digital Object Identifier (DOI):||10.1103/PhysRevD.82.094509|
|Appare nelle tipologie:||1.1 Articolo in rivista|