The Power of Duality -- Exact Results in 4D SUSY Field Theory
Nathan Seiberg
TL;DR
This paper reviews recent exact results on the vacuum structure of 4D supersymmetric quantum field theories, highlighting the role of electric-magnetic duality in understanding strong coupling phenomena.
Contribution
It provides a comprehensive review of exact solutions in 4D SUSY theories and emphasizes the significance of electric-magnetic duality in revealing new physical insights.
Findings
Exact vacuum structures determined for a broad class of 4D SUSY theories
Electric-magnetic duality explains strong-weak coupling relationships
New phases and phenomena in gauge theories uncovered
Abstract
Recently the vacuum structure of a large class of four dimensional (supersymmetric) quantum field theories was determined exactly. These theories exhibit a wide range of interesting new physical phenomena. One of the main new insights is the role of ``electric-magnetic duality.'' In its simplest form it describes the long distance behavior of some strongly coupled, and hence complicated, ``electric theories'' in terms of weakly coupled ``magnetic theories.'' This understanding sheds new light on confinement and the Higgs mechanism and uncovers new phases of four dimensional gauge theories. We review these developments and speculate on the outlook.
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