MAGNETIC MONOPOLES AND THE DUAL LONDON EQUATION IN SU(3) LATTICE GAUGE-THEORY

The dual superconductor model of confinement in non-Abelian gauge theo ries is studied in a gauge invariant formulation. We propose a method for the determination of magnetic monopole currents in non-Abelian gau ge theories which does not need a projection to Abelian degrees of fre edom. With this definition we are able to determine the distribution o f magnetic currents and electric fields for the gluonic flux tube betw een a pair of static charges. Further we check the validity of the dua l London equation in a gauge invariant formulation.