QED topics
https://en.wikipedia.org/wiki/Template:QEDFeynman et la lumière - Passe-science #15
Feynman et la QED - Passe-science #22
Schwinger limit (nonlinear electromag field)
https://en.wikipedia.org/wiki/Schwinger_limitThe electronic Hamiltonian in an electromagnetic field (classical, relativistic, quantum, molecular, systems), Helgaker, 82p
http://folk.uio.no/helgaker/talks/Hamiltonian.pdfWill a decaying atom feel a friction force ? (an excited two-level atom moving through vacuum sees a tiny friction force; relativity principle violated ?)
https://arxiv.org/abs/1610.02264V.B. Berestetskii, E.M. Lifshitz, L.P. Pitaevskii (1982). Quantum Electrodynamics. Vol. 4 (2nd ed.)
Quantum field theory vacuum is a dielectric medium that screens charge
What exactly is a photon? - Physics Stack Exchange
https://physics.stackexchange.com/questions/273032/what-exactly-is-a-photon