出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：A random vortex world-surface model for the infrared sector of Sp(2) Yang-Mills theory is constructed.
The Sp(2) gauge group, while allowing for the same set of center vortex uxes as
the SU(2) gauge group, induces a signicantly different dynamics on those vortex uxes, which
manifests itself in a rst-order deconnement phase transition. As shown by the construction
presented here, a new vortex effective action term which can be interpreted in terms of a vortex
stickiness can be used to drive the deconnement transition towards rst-order behavior. The
available data from lattice Sp(2) Yang-Mills theory are reproduced quantitatively and, in addition,
predictions for the behavior of the spatial string tension at high temperatures are presented.
