Complete Wetting in Supersymmetric QCD or Why QCD Strings Can End on Domain Walls

Abstract

As argued by Witten on the basis of M-theory, QCD strings can end on domain walls. We present an explanation of this effect in the framework of effective field theories for the Polyakov loop and the gluino condensate in N=1 supersymmetric QCD. The domain walls separating confined phases with different values of the gluino condensate are completely wet by a layer of deconfined phase at the high-temperature phase transition. As a consequence, even at low temperatures, the Polyakov loop has a non-vanishing expectation value on the domain wall. Thus, close to the wall, the free energy of a static quark is finite and the string emanating from it can end on the wall.

8 pages, 2 figures

References in corpus (6)

• Branes And The Dynamics Of QCD
• Domain Walls in Supersymmetric Yang-Mills Theories
• Degenerate Domain Wall Solutions in Supersymmetric Theories
• More on Supersymmetric Domain Walls, N Counting and Glued Potentials
• Dirichlet Topological Defects
• Domain Walls Zoo in Supersymmetric QCD

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