"Causality, the Coulomb field, and Newton's law of gravitation" (Comment), American Journal of Physics, Volume 70, Issue 9, p. 964, September 2002.

With Bethe, he published a paper on pair production of gamma rays in the Coulomb field of an atomic nucleus, in which they developed the Bethe-Heitler formula for Bremsstrahlung.

However, in the Coulomb field of a nucleus the translational invariance is broken and single-photon annihilation may occur.

Because U(1) describes electromagnetism including the Coulomb field, the corresponding phase is called a Coulomb phase.

Delbrück scattering, the deflection of high-energy photons in the Coulomb field of nuclei as a consequence of vacuum polarization has been observed.

Delbrück scattering is the coherent elastic scattering of photons in the Coulomb field of heavy nuclei.

It is one of the two nonlinear effects of quantum electrodynamics (QED) in the Coulomb field investigated experimentally.

Mu2e The muon-to-electron conversion experiment (Mu2e) is designed to search for the coherent, neutrino-less conversion of a muon to an electron, in the Coulomb field of a nucleus.

In equation (1), and (2), the first terms fall off as the inverse square of the distance from the particle, and this first term is called the generalized Coulomb field or velocity field.

Contraction also leads to an increase of the intensity of the Coulomb field perpendicular to the direction of motion, whose effects already have been observed.