Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-01-23
Nucl.Phys.B770:371-383,2007
Physics
High Energy Physics
High Energy Physics - Theory
17 pages, 1 figure; v2: cosmetic changes
Scientific paper
10.1016/j.nuclphysb.2007.02.018
The strongly coupled vacua of an N=1 supersymmetric gauge theory can be described by imposing quantization conditions on the periods of the gauge theory resolvent, or equivalently by imposing factorization conditions on the associated N=2 Seiberg-Witten curve (the so-called strong-coupling approach). We show that these conditions are equivalent to the existence of certain relations in the chiral ring, which themselves follow from the fact that the gauge group has a finite rank. This provides a conceptually very simple explanation of why and how the strongly coupled physics of N=1 theories, including fractional instanton effects, chiral symmetry breaking and confinement, can be derived from purely semi-classical calculations involving instantons only.
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