A contemporary review on the behavior of driven tunneling in quantum systems is
presented. Diverse phenomena, such as control of tunneling, higher harmonic generation …

In this work, we discuss the resonance states of a quantum particle in a periodic potential
plus a static force. Originally, this problem was formulated for a crystal electron subject to a …

We report the direct observation of quantum dynamical tunneling of atoms between
separated momentum regions in phase space. We study how the tunneling oscillations are …

We study quantum-mechanical tunneling in mixed dynamical systems between symmetry-
related phase space tori separated by a chaotic layer. Considering, eg, the annular billiard …

The interaction of an atom with an electro-magnetic field is discussed in the presence of a
time periodic external modulating force. It is explained that a control on atom by electro …

In the context of quantum chaos, both theory and numerical analysis predict large
fluctuations of the tunneling transition probabilities when irregular dynamics is present at the …

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 …

Dynamical tunneling between symmetry-related stable modes is studied in the periodically
driven pendulum. We present strong evidence that the tunneling process is governed by …

We present an entropy concept measuring quantum localization in dynamical systems
based on time averaged probability densities. The suggested entropy concept is a …

High-order harmonic generation spectra of atoms and molecules in intense laser fields show
a wide plateau of odd harmonics, with photon energies high up to the soft X-ray regime. The …