3 papers
hep-th2026
On Lagrangians of Non-abelian Dijkgraaf-Witten Theories
Yuan Xue, Eric Y. Yang
Dijkgraaf-Witten theories have a wide range of applications in topological phases of matter and the study of generalized global symmetries. We develop a method to construct BF-type…
hep-th2026
On Gauging Finite Symmetries by Higher Gauging Condensation Defects
Yuan Xue, Eric Y. Yang, Zipei Zhang
Based on the work by C{ó}rdova-Costa-Hsin (arXiv:2412.16681), we propose an EFT-style, Lagrangian procedure to gauge finite 0-form symmetries in untwisted Dijkgraaf-Witten gauge t…
hep-th2025
Revisiting Scattering Enhancement from the Aharonov-Bohm Effect
T. Daniel Brennan, Jaipratap Singh Grewal, Eric Y. Yang
We revisit the problem of a charged particle scattering off of an Aharonov-Bohm cosmic string. A classic computation gave an infinite total scattering cross section, leading to a C…