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

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

1998-05-14

arxiv.org/abs/hep-th/9805086v1

Phys.Rev.Lett. 81 (1998) 2420-2423

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.81.2420

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.

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