Year: 2026
Type: preprint
Abstract: We find new boundary conditions in four-dimensional Abelian gauge theory with general Chern--Simons boundary couplings. The boundary conditions allow dyonic edge modes and physical boundary symmetries. In particular, one of the new boundary conditions makes both electric and magnetic charges physical. We also study how our boundary conditions and charges transform under the $\mathrm{SL}(2,\mathbb Z)$ duality.
Source: arXiv (Cornell University)
Authors: Shimizu, Keito, Sugishita, Sotaro
Institution: Kyoto University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7214615099