We discuss the dynamics of three-dimensional Maxwell theory coupled to a level-k Chern-Simons term. Motivated by S-duality in string theory, we argue that the theory admits an S-dual description. The… Click to show full abstract
We discuss the dynamics of three-dimensional Maxwell theory coupled to a level-k Chern-Simons term. Motivated by S-duality in string theory, we argue that the theory admits an S-dual description. The S-dual theory contains a nongauge one-form field, previously proposed by Deser and Jackiw [Phys. Lett. 139B, 371 (1984).PYLBAJ0370-269310.1088/1126-6708/1999/10/036] and a level-k U(1) Chern-Simons term, Z_{MCS}=Z_{DJ}Z_{CS}. The couplings to external electric and magnetic currents and their string theory realizations are also discussed.
Journal Title: Physical review letters
Year Published: 2022
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