k strings from various perspectives QCD, lattices, string theory and toy models

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Abstract

I review the status of the issue of the k-string tension in Yang-Mills theory. After a summary of known facts I discuss a weakly coupled four-dimensional Yang-Mills theory that supports non-Abelian strings and can, in certain aspects, serve as a toy model for QCD strings. In the second part of the talk I present original results obtained in a two-dimensional toy model which provides some evidence for the sine formula.

Original languageEnglish (US)
Pages (from-to)3805-3835
Number of pages31
JournalActa Physica Polonica B
Volume36
Issue number12
StatePublished - Dec 1 2005

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