3 papers
physics.atom-ph2026
Spectral Phase Pulse Shaping Alters Photoionization Time
J. Aygun, D. Yaacoub, A. L. Harris
Photoionization is a key step in many attosecond processes. Accurately determining the photoionization time delay is critical to understanding electron dynamics during and after io…
physics.plasm-ph2025
Grain Boundary Diffusion in Yukawa Crystals
Matthew E. Caplan, Nevin T. Smith, Dany Yaacoub +3
We present calculations of diffusion coefficients in grain boundaries in Yukawa crystals for astrophysics. Our methods follow from our recent work calculating diffusion coefficient…
physics.plasm-ph2025
No Evidence of Anomalous Diffusion in Yukawa Crystals
Matthew E. Caplan, Dany Yaacoub
Diffusion in Yukawa crystals is stochastic due to the thermally activated formation of vacancy-interstitial pairs, which have poor statistics in simulations. This makes it difficul…