Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-02-11
Phys.Rev.D79:106003,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages, 2 figures
Scientific paper
10.1103/PhysRevD.79.106003
We discuss classification of defects of various codimensions within a holographic model of pure Yang-Mills theories or gauge theories with fundamental matter. We focus on their role below and above the phase transition point as well as their weights in the partition function. The general result is that objects which are stable and heavy in one phase are becoming very light (tensionless) in the other phase. We argue that the $\theta$ dependence of the partition function drastically changes at the phase transition point, and therefore it correlates with stability properties of configurations. Some possible applications for study the QCD vacuum properties above and below phase transition are also discussed.
Gorsky Alexander
Zakharov Valentin
Zhitnitsky Ariel
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