On low-energy effective action in three-dimensional = 2 and = 4 supersymmetric electrodynamics

21st International Conference on Integrable Systems and Quantum Symmetries

Buchbinder, I.L.^1 ; Merzlikin, B.S.^1,2 ; Samsonov, I.B.^2,3

Department of Theoretical Physics, Tomsk State Pedagogical University, Tomsk 634061, Russia^1

Department of Higher Mathematics and Mathematical Physics, Tomsk Polytechnic University, 634050 Tomsk, Russia^2

INFN, Sezione di Padova, 35131 Padova, Italy^3

关键词: General structures;    Low-energy;    Moduli space;    Quantum correction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/474/1/012012/pdf
DOI  :  10.1088/1742-6596/474/1/012012

来源: IOP

【 摘 要 】

We discuss general structure of low-energy e-ective actions in N = 2 and N = 4 three-dimensional supersymmetric electrodynamics (SQED) in gauge super-eld sector. There are speci-c terms in the e-ective action having no four-dimensional analogs. Some of these terms are responsible for the moduli space metric in the Coulomb branch of the theory. We -nd two-loop quantum corrections to the moduli space metric in the N = 2 SQED and show that in the N = 4 SQED the moduli space does not receive two-loop quantum corrections.