A study of center vortices in SU(2) and SU(3) gauge theories
  We show how center vortices and Abelian monopoles both appear as local gauge ambiguities in the Laplacian Center gauge. Numerical results, for SU(2) and SU(3), support the view that the string tension obtained in the center-projected theory matches the full string tension when the continuum limit is taken. 
M. Pepe (ETH) and Ph. de Forcrand (ETH and CERN)