Complete Wetting in Supersymmetric QCD: or Why QCD Strings Can End on Domain Walls
- Center for Theoretical Physics, Laboratory for Nuclear Science, Department of Physics, Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts 02139 (United States)
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 nonvanishing 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. {copyright} {ital 1998} {ital The American Physical Society}
- DOE Contract Number:
- FC02-94ER40818
- OSTI ID:
- 658500
- Journal Information:
- Physical Review Letters, Vol. 81, Issue 12; Other Information: PBD: Sep 1998
- Country of Publication:
- United States
- Language:
- English
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