Speaker
Description
Attosecond physics aims to unravel the electron motion and coherence in atoms and molecules. Major contributions to this field are the real-time observations of the motion of electrons in ions and atoms through attosecond transient absorption spectroscopy (ATAS). Despite the great success of ATAS, all studies have so far been based on non-relativistic ATAS theory. Seeking a compromise between computational cost and accuracy, the relativistic time-dependent configuration interaction singles (RTDCIS) method is proposed for studying atoms and ions. This novel method opens up the possibility to describe the electron spin dynamics by means of spin-resolved ATAS experiments far beyond the perturbative regime. Similarly, it can be applied to other strong-field processes, such as high-order harmonic generation, above-threshold ionization, laser-assisted photoionization, hole alignment, and the study of complex Rabi dynamics.
