From the 2 of 33 linked papers with an AI index.
33 papers
Higher-order corrections to the field shift in atomic systems
V. A. Yerokhin, Z. Harman, C. H. Keitel
The paper develops a systematic expansion for higher-order contributions to the field shift in atomic spectra, validates it with numerical calculations for hydrogen-like ions, and…
Wichmann-Kroll Correction to the Interelectronic Interaction in He- and Li-Like Ions
J. Sommerfeldt, V. A. Yerokhin, Z. Harman +1
The paper calculates the higher‑order Wichmann‑Kroll QED correction to the interelectronic interaction in helium‑ and lithium‑like ions, improving numerical convergence and providi…
Quasiperiodic nondipole ionization dynamics in the x-ray stabilization regime
Aleksandr V. Boitsov, Karen Z. Hatsagortsyan, Christoph H. Keitel
Recent advances in strong x-ray laser techniques enable the study of nonlinear multiphoton ionization in extreme high-frequency fields. Although the stabilization regime in such fi…
Radiation-induced electron spin polarization in ultrarelativistic kinetic turbulence
Peng Liu, Karen Z. Hatsagortsyan, Christoph H. Keitel +1
Electron spin polarization in radiative plasmas with ultrarelativistic kinetic turbulence under highly magnetized conditions is investigated using particle-in-cell simulations. We…
Intrinsic Nonlocality of Spin- and Polarization-Resolved Probabilities in Strong-Field Quantum Electrodynamics
Samuele Montefiori, Antonino Di Piazza, Tobias Podszus +2
Spin and polarization are central to precision tests of fundamental physics and for interpreting radiation from astrophysical sources and ultraintense laser-matter experiments. Her…
Strong-field focusing of high-energy particles in beam-multifoil collisions
Aimé Matheron, Doug Storey, Max F. Gilljohann +25
Extreme beams of charged particles and photons, reaching ultrahigh densities or producing intense gamma-ray bursts, are central to accelerator physics, laboratory astrophysics, and…