Dynamical tunnelling, introduced in the molecular context, is more than two decades old and
refers to phenomena that are classically forbidden but allowed by quantum mechanics. The …

We investigate the response of a quantum particle in the Tietz-Hua quantum potential driven
by biharmonic fields: a low-frequency force and a very high frequency force. The response is …

We propose a scheme to control the shape of the Autler-Townes (AT) doublet in the
photoelectron spectrum from atomic resonance-enhanced multiphoton ionization (REMPI) …

It is shown that a relevant control of Hamiltonian chaos is possible through suitable small
perturbations whose form can be explicitly computed. In particular, it is possible to control …

Recent developments in experimental technique allow study of the ionization and excitation
of Rydberg atoms by pulsed unidirectional electric fields, termed half-cycle pulses (HCPs) …

We present the results of an experimental study of the enhancement factor WS, β of the two-
port scattering matrix and the cross-correlation function c 12 (ν) for microwave irregular …

We show that there is a relationship between the generalized Euler characteristic E o (| VD
o|) of the original graph that was split at vertices into two disconnected subgraphs i= 1, 2 and …

We present experimental and numerical studies for level statistics in incomplete spectra
obtained with microwave networks simulating quantum chaotic graphs with broken time …

Investigation of the generalized Euler characteristic of graphs and microwave networks split at
edges and vertices Page 1 Physica Scripta PAPER • OPEN ACCESS Investigation of the …

We investigated properties of a singular billiard, that is, a quantum billiard which contains a
pointlike (zero-range) perturbation. A singular billiard was simulated experimentally by a …