Two-loop low-energy effective actions in N=2 and N=4 three-dimensional SQED
High Energy Physics - Theory
2015-06-16 v3
Abstract
We study two-loop Euler-Heisenberg effective actions in three-dimensional N=2 and N=4 supersymmetric quantum electrodynamics (SQED) without Chern-Simons term. We find exact expressions for propagators of chiral superfields interacting with slowly-varying N=2 gauge superfield. Using these propagators we compute two-loop effective actions in the N=2 and N=4 SQED as the functionals of superfield strengths and their covariant spinor derivatives. The obtained effective actions contain new terms having no four-dimensional analogs. As an application, we find two-loop quantum corrections to the moduli space metric in the N=2 SQED.
Keywords
Cite
@article{arxiv.1305.4815,
title = {Two-loop low-energy effective actions in N=2 and N=4 three-dimensional SQED},
author = {I. L. Buchbinder and B. S. Merzlikin and I. B. Samsonov},
journal= {arXiv preprint arXiv:1305.4815},
year = {2015}
}
Comments
1+33 pages, v2: minor changes; v3: reference added