198 citations · 2.4k across the 98 of their papers we have counts for
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Comment on "Vacuum Photon Splitting in Lorentz-Violating Quantum Electrodynamics"
C. Adam, F. R. Klinkhamer
It has been argued in hep-ph/0212382 that there may be observable effects from photon triple splitting in an extended version of quantum electrodynamics with Lorentz violation in t…
Causality and CPT violation from an Abelian Chern-Simons-like term
C. Adam, F. R. Klinkhamer
We study a class of generalized Abelian gauge field theories where CPT symmetry is violated by a Chern-Simons-like term which selects a preferred direction in spacetime. Such Chern…
Perturbative solution of the Schwinger model
Christoph Adam
For the exactly solvable Schwinger model one interesting question is how to infer the exact solution from perturbation theory. We give a systematic procedure of deriving the exact…
The boson-boson bound state in the massive Schwinger model
Christoph Adam
We use (fermion) mass perturbation theory for the massive Schwinger model to compute the boson-boson bound state mass in lowest order. For small fermion mass the lowest possible Fo…
THE DYSON-SCHWINGER EQUATION FOR A MODEL WITH INSTANTONS - THE SCHWINGER MODEL
C. Adam
Using the exact path integral solution of the Schwinger model -- a model where instantons are present -- the Dyson-Schwinger equation is shown to hold by explicit computation. It t…