2 papers
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…
hep-th2024
Constraints on Symmetry Preserving Gapped Phases from Coupling Constant Anomalies
T. Daniel Brennan
In this note, we will characterize constraints on the possible IR phases of a given QFT by anomalies in the space of coupling constants. We will give conditions under which a coupl…