Monopole Condensation and Dimensional Transmutation in SU(2) QCD
arXiv:hep-th/0209208 · doi:10.1088/1126-6708/2004/05/073
Abstract
We resolve the controversy on the stability of the monopole condensation in the one-loop effective action of SU(2) QCD by calculating the imaginary part of the effective action with two different methods at one-loop order. Our result confirms that the effective action for the magnetic background has no imaginary part but the one for the electric background has a negative imaginary part. This assures that the monopole condensation is indeed stable, but the electric background becomes unstable due to the pair-annihilation of gluons.
13 pages, 2 figures
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