198 citations · 3.3k across the 147 of their papers we have counts for
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hep-ph2003★ 3 cited
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…
hep-th2003★ 98 cited
Spacetime foam, CPT anomaly, and photon propagation
F. R. Klinkhamer, C. Rupp
The CPT anomaly of certain chiral gauge theories has been established previously for flat multiply connected spacetime manifolds M of the type R^3 x S^1, where the noncontractible…
hep-th2003★ 32 cited
Sphalerons, spectral flow, and anomalies
F. R. Klinkhamer, C. Rupp
The topology of configuration space may be responsible in part for the existence of sphalerons. Here, sphalerons are defined to be static but unstable finite-energy solutions of th…