2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/176382We note that the energy loss in ${\cal N}=4$ SYM measures directly the spatial string tension $σ_S=π\sqrtλT^2/2$ which is at the origin of the area law for large spatial Wilson loops. We show that the latter reflects on the nonperturbative nature of Ampere's law in ${\cal N}=4$ SYM both in vacuum and at finite temperature.5pp and 1 Figure; short discussion addedHigh Energy Physics - PhenomenologyHigh Energy Physics - TheoryNuclear ExperimentNuclear Theorytext