Topological clusters in SU(2) gluodynamics at finite temperature and the   evidence for KvB calorons
  We report on our search for Kraan-van Baal calorons in finite temperature SU(2) lattice ensembles. We also discuss recent progress made in developing a caloron-anticaloron gas model decribing confinement and deconfinement in the context of trivial and non-trivial holonomy. 
E.-M.Ilgenfritz, P. Gerhold, M. M\"uller-Preussker (Humboldt   Universit\"at Berlin), B.V. Martemyanov and A.I. Veselov (ITE...