Attosecond science offers formidable tools for the investigation of electronic processes at the
heart of important physical processes in atomic, molecular and solid-state physics. In the last …

Recent advances in the generation of well-characterized subfemtosecond laser pulses have
opened up unpredicted opportunities for the real-time observation of ultrafast electronic …

X-ray free-electron lasers (XFELs) and table-top sources of x-rays based upon high
harmonic generation (HHG) have revolutionized the field of ultrafast x-ray atomic and …

The dynamics of quantum systems are encoded in the amplitude and phase of wave
packets. However, the rapidity of electron dynamics on the attosecond scale has precluded …

This tutorial presents an introduction to the interaction of light and matter on the attosecond
timescale. Our aim is to detail the theoretical description of ultra-short time delays and to …

For over a century since the Nobel prize winning work by Einstein (1905 Ann. Phys. 17 132),
atomic photoionization was thought to be an instantaneous process. Recent experimental …

Temporal delays extracted from photoionization phases are currently determined with
attosecond resolution by using interferometric methods. Such methods require special care …

We use the nonrelativistic random-phase approximation with exchange to perform
calculations of valence-shell photoionization of Ne, Ar, Kr, and Xe from their respective …

In this review, we will focus on the theoretical aspects in observing and controlling the
electronic dynamics in few-electron atoms and molecules by attosecond pulses in different …

Photoionization by an eXtreme UltraViolet (XUV) attosecond pulse train (APT) in the
presence of an infrared pulse (RABBITT method) conveys information about the atomic …