出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Completion of the Svetitsky-Yaffe conjecture in some (2+1) dimensional SU(N) gauge theories
allows mapping Polyakov loops in higher representations of the gauge group into suitable conformal
operators of the corresponding 2D CFT. As a consequence, the critical exponents of the
correlators of these Polyakov loops are determined. The functional form of these correlators suggests
a general Ansatz to describe the large-distance screening of higher-representation sources at
zero temperature in any space-time dimension. A generalisedWilson loop in which along part of
its trajectory a source is converted in a gauge invariant way into higher representations with same
Nality could be used to estimate the decay scale of the unstable strings.
