- Seiberg duality
In
quantum field theory , the Seiberg duality, discovered byNathan Seiberg , is anS-duality relating two different supersymmetric QCDs in the low-energy (infrared) limit. This duality is only exact in the IR limit; in other words, the two theories are not identical, but their IR universality classes happen to match.In particular, it relates an "N"=1 theory with SU(Nc) as the
gauge group and Nf flavors offundamental chiral multiplet s and Nf flavors ofantifundamental chiral multiplets in thechiral limit (nobare mass es) with an N=1 chiral QCD with Nf-Nc colors and Nf flavors, where Nc and Nf are positive integers satisfying: .
Being an S-duality, it relates the
strong coupling regime with theweak coupling regime , and interchangeschromoelectric field s withchromomagnetic field s, and chromoelectric charges with chromomagnetic monopole s. In particular, theHiggs phase is dual to the confinement phase as in thedual superconducting model .
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