Z(N) wall junctions: Monopole fossils in hot QCD
arXiv:hep-ph/0102329 · doi:10.1016/S0370-2693(01)00479-8
Abstract
We point out that the effective action of hot Yang--Mills theories has semi-classical solutions, which are naturally identified with monopole world lines, ``frozen'' into the short imaginary time dimension. The solutions look like wall junctions: lines along which N electric Z(N) domain walls come together. They are instrumental in reconciling explicit perturbative calculations at high temperature with the magnetic Z(N) symmetry.
10 pages, Latex