The vacuum expectation value of an operator carrying a magnetic charge is studied numerically for temperatures above the deconfinement temperature in SU(2) and SU(3) gauge theory. By analyzing its finite size behavior, this is found to be exactly zero in the thermodynamical limit for any T > Tc whenever the magnetic charge of the operator is different from zero. These results show that magnetic charge is superselected in the hot phase of quenched QCD.
|Autori:||D'ELIA M; DI GIACOMO A; LUCINI B|
|Titolo:||Magnetic charge superselection in the deconfined phase of Yang-Mills theory|
|Anno del prodotto:||2004|
|Digital Object Identifier (DOI):||10.1103/PhysRevD.69.077504|
|Appare nelle tipologie:||1.1 Articolo in rivista|