This article discusses the reasons behind the apparent lack of success of density functional
theory (DFT), during the past three decades, with excited states of many-electron systems. It …

We calculate and analyse S-wave resonances of helium up to an energy of-0.02 au applying
the complex rotation technique. Rydberg series converging to the hydrogenic thresholds of …

This book describes the manifestations of chaos in atoms and molecules. The study of chaos
is today one of the most active and prolific areas in atomic physics. This is the first attempt to …

It is generally believed that the old quantum theory, as presented by Niels Bohr in 1913, fails
when applied to few electron systems, such as the H2 molecule. Here we review recent …

We present an analytical model capable of describing two-photon ionization of atoms with
attosecond pulses in the presence of intermediate and final isolated autoionizing states. The …

We discuss a method of solving the time-dependent Schrödinger equation for atoms with
two active electrons in a strong laser field, which we used in a previous paper [A. Scrinzi and …

We report on a calculation of K, L and M inner-shell ionization energy in atoms with atomic
numbers in the range. Many-body effects are evaluated for all n= 1, 2, and 3 hole states …

In a joint experimental and theoretical endeavor, photoionization of metastable C 4+(1 s 2 s
S 1 3) ions via intermediate levels with hollow, double-K-vacancy configurations 2 s 2 p, 2 s …

Energies and Auger widths of the LL resonances in He-like ions from boron to argon are
evaluated by means of a complex-scaled configuration-interaction approach within the …

The photodetachment cross sections for H− and Li− in the vicinity of the H (n= 2-4) and Li
(n= 3-4) thresholds are calculated. A discrete numerical basis set, combined with the method …