BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Thomas Schaefer\, North Carolina State University\n\nFinding co ntrolled\, analytical approaches to the deconfinement transition in QCD is an old problem. Here we present a weak coupling calculation of the deconf inement transition in a deformed version of QCD. We argue that this transi tion is continuously connected to the transition in pure gauge theory\, wh ich takes place in strong coupling.\n
\nMore technical abstract: We stud y the phase diagram of SU(2) Yang-Mills theory with one adjoint Weyl fermi on on R^3xS^1 as a function of the fermion mass m and the compactification scale beta. This theory reduces to thermal pure gauge theory as m->infini ty and to circle-compactified\n(twisted) susy gluodynamics in the limit m- >0. In the m-L plane\, there is a line of center symmetry changing phase t ransitions. In the limit\nm->infinity\, this transition takes place at bet a_c=1/T_c\, where T_c is\nthe critical temperature of the deconfinement tr ansition in pure Yang-Mills theory. We show that near m=0\, the critical s cale beta_c can be computed using semi-classical methods and that the tran sition is of second order.\nThis suggests that the deconfining phase trans ition in pure Yang-Mills theory is continuously connected to a phase trans ition that can be studied in weak coupling. The center symmetry changing p hase transition arises from the competition of fractionally charged instan ton-monopoles and instanton molecules. The calculation can be extended to higher rank gauge groups and non-zero theta angle. DTSTART:20121115T193000Z LOCATION:Physics Building\, Room 313 SUMMARY:Continuity of the Deconfinement Transition in (Super) Yang Mills Th eory END:VEVENT END:VCALENDAR