5 papers · 1 filter
Tree-Level Factorization Obstruction in Monopole Production
Hsing-Yi Lai, John Terning
We show that the tree-level amplitude for producing a monopole--antimonopole pair from an electrically charged pair cannot be constructed from the minimal one-photon couplings. Glu…
Non-invertible Chiral Symmetry and Axions under Electromagnetic Duality
Gongjun Choi, Tony Gherghetta, John Terning
We study the implications of non-invertible chiral symmetry in a four-dimensional U(1) gauge theory coupled to massless fermions with electromagnetic duality. Th…
Geometrizing the Anomaly
Joshua Newey, John Terning, Christopher B. Verhaaren
Recently a manifestly gauge invariant formalism for calculating amplitudes in quantum electrodynamics was outlined in which the field strength, rather than the gauge potential, is…
Schwinger vs Coleman: Magnetic Charge Renormalization
Joshua Newey, John Terning, Christopher B. Verhaaren
The kinetic mixing of two U(1) gauge theories can result in a massless photon that has perturbative couplings to both electric and magnetic charges. This framework can be used to p…
Abelian Instantons and Monopole Scattering
Csaba Csáki, Rotem Ovadia, Ofri Telem +2
It is usually assumed that instantons can only arise in non-Abelian theories. In this paper we re-examine this conventional wisdom by explicitly constructing instantons in an…