Timing the release in sequential double ionization

TL;DR: Theoretical avenues of attack have emerged in two categories, which are strikingly different as mentioned in this paper, which can be labeled as "all-at-once" and "step-by-step" approaches.

TL;DR: In this paper, the authors proposed a method to calculate the electron impact ionization cross sections of some helium-like ions using the relativistic distorted wave method implemented in Flexible Atomic Code.

TL;DR: In this article, a review of recent advances in attosecond science is reported and important applications are discussed, with a brief presentation of various techniques that can be employed for the generation and diagnosis of sub-femtosecond pulses.

TL;DR: In this paper, the authors focus on the photoelectric effect by attosecond streaking and highlight the unresolved and open questions and point to future directions aiming at the observation and control of electronic motion in more complex nanoscale structures and in condensed matter.

TL;DR: In this article, an expression for the probability of tunnel ionization in an alternating field, of a complex atom and of an atomic ion that are in an arbitrary state, was derived in the quasiclassical approximation n* $1.

TL;DR: The cold target recoil ion momentum spectroscopy (COLTRIMS) is a momentum space imaging technique for the investigation of the dynamics of ionizing ion, electron or photon impact reactions with atoms or molecules as mentioned in this paper.

TL;DR: An attosecond pump–probe measurement of the density matrix of valence electrons in atomic krypton ions is reported, able to completely characterize the quantum mechanical electron motion and determine its degree of coherence in the specimen of the ensemble.

TL;DR: Ultrafast metrology reveals a 20-attosecond delay between photoemission from different electronic orbitals in neon atoms and theoretical models refined with the help of attosecond timing metrology may provide insight into electron correlations and allow the setting of the zero of time in atomic-scale chronoscopy with a precision of a few attose Cond.