Conspectus Isolated boron clusters exhibit many intriguing properties, which have only
recently been unfolding with the hand-in-hand advancement of state-of-the-art experimental …

We study the Born–Oppenheimer dynamics within a model for a coupled electron–nuclear
motion. Differential Shannon entropies are calculated from the time-dependent probability …

We calculate differential Shannon entropies derived from time-dependent coordinate-space
and momentum-space probability densities. This is performed for a prototype system of a …

We study differential Shannon entropies determined from position-space quantum
probability densities in a coupled electron–nuclear system. In calculating electronic and …

We investigate the quantum and classical wave packet dynamics in an harmonic oscillator
that is perturbed by a disorder potential. This perturbation causes the dispersion of a …

The differential Shannon entropy provides a measure for the localization of a wave function.
We regard the vibrational wave packet motion in a curve crossing system and calculate time …

In this work, we set up a model Hamiltonian to study the excited state quantum dynamics of
1, 1-difluoroethylene, a molecule that has equivalent atoms exchanged by a torsional …

The boron rotor B 13+ 11 consists of a tri-atomic inner “wheel” that may rotate in its pseudo-
rotating ten-atomic outer “bearing”—this concerted motion is called “contorsion.” B 13+ 11 in …

Nuclear quantum effects are often neglected for systems without hydrogen atoms. However
some planar boron rotors turn out to exhibit remarkable nuclear quantum effects. Recent …

Spreading of probability distributions and the corresponding increases of entropy are a
familiar effect of everyday life. Here we show that the phenomenon can also be achieved by …