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

In this Colloquium, the wave-function-based multiconfigurational time-dependent Hartree
approaches to the dynamics of indistinguishable particles (MCTDH-F for fermions and …

Optical elements that convert the spin angular momentum (SAM) of light into vortex beams
have found applications in classical and quantum optics. These elements—SAM-to–orbital …

Ultrafast processes in matter, such as the electron emission after light absorption, can now
be studied using ultrashort light pulses of attosecond duration (10− 18 seconds) in the …

Photoionization of atoms and molecules is one of the fastest processes in nature. The
understanding of the ultrafast temporal dynamics of this process often requires the …

Time delays of electrons emitted from an isotropic initial state with the absorption of a single
photon and leaving behind an isotropic ion are angle independent. Using an interferometric …

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 …

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 …