“…The first two papers focus on QED physics in traditional accelerators. The first one is authored by Si and Huang [ 1 ], who proposed a potentially precise method for calculating the interaction cross section of electrons and microwave photons in a resonant cavity. It is shown that with suitable corrections in the cross section formula of classical Compton scattering, the cross section of the linear or nonlinear microwave Compton scattering in the local space can be described accurately.…”