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Construction of Dirac spinors for electron vortex beams in background electromagnetic fields
Andre G. Campos, Karen Z. Hatsagortsyan, Christoph H. Keitel
Exact solutions of the Dirac equation, a system of four partial differential equations, are rare. The vast majority of them are for highly symmetric stationary systems. Moreover, o…
Transmutation of protons in a strong electromagnetic field
Tobias N. Wistisen, Christoph H. Keitel, Antonino Di Piazza
The process of turning a proton into a neutron, positron and electron-neutrino in a strong plane-wave electromagnetic field is studied. This process is forbidden in vacuum and is s…
Sub-barrier pathways to Freeman resonances
Michael Klaiber, Karen Z. Hatsagortsyan, Christoph H. Keitel
The problem of Freeman resonances [R. R. Freeman \textit{et al.}, Phys. Rev. Lett. \textbf{59}, 1092 (1987)] when strong field ionization is enhanced due to the transient populatio…
Extremely Dense Gamma-Ray Pulses in Electron Beam-Multifoil Collisions
Archana Sampath, Xavier Davoine, Sébastien Corde +26
Sources of high-energy photons have important applications in almost all areas of research. However, the photon flux and intensity of existing sources is strongly limited for photo…
Two-loop virtual light-by-light scattering corrections to the bound-electron factor
V. Debierre, B. Sikora, H. Cakir +4
A critical set of two-loop QED corrections to the factor of hydrogenlike ions is calculated without expansion in the nuclear binding field. These corrections are due to the pol…
A cosmic Zevatron based on cyclotron auto-resonance
Yousef I. Salamin, Meng Wen, Christoph H. Keitel
A Zevatron is an accelerator scheme envisaged to accelerate particles to ZeV energies (1 ZeV = eV). Schemes, most notably the internal shock model, have been proposed to…