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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Spin foams, monopoles and confinement
Speaker(s): Florian Conrady
Abstract: In the strong-coupling regime of lattice gauge theory, the spin foam representation provides a very direct explanation of confinement. The problem is that strong coupling corresponds to coarse lattice spacings, where the lattice approximation is not considered realistic. Here, we will present an analytic computation with spin foams for weak coupling (i.e. in the continuum limit). It applies to SU(2) and 3 dimensions, and yields a path-integral over gluon and monopole-like degrees of freedom. Similar path-integrals were obtained from other representations, and we discuss a possible derivation of confinement from them. We compare this to the derivation of graviton propagators from gravity spin foams.
Date: 02/11/2006 - 1:30 pm
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