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 …

Optical lattices have developed into a widely used and highly recognized tool to study many-
body quantum physics with special relevance for solid state type systems. One of the most …

It was proposed recently that the out-of-time-ordered four-point correlator (OTOC) may serve
as a useful characteristic of quantum-chaotic behavior, because, in the semiclassical limit …

A primer on the Floquet theory of periodically time-dependent quantum systems is provided,
and it is shown how to apply this framework for computing the quasienergy band structure …

The aim of this Book is to give an overview, based on the results of nearly three decades of
intensive research, of transient chaos. One belief that motivates us to write this book is that …

We review recent theoretical advances in cold atom physics concentrating on strongly
correlated cold atoms in optical lattices. We discuss recently developed quantum optical …

We have performed a number of experiments with a Bose-Einstein condensate (BEC) in a
one-dimensional optical lattice. Making use of the small momentum spread of a BEC and …

We present the experimental finding of multiple simultaneous two-fold degeneracies in the
spectrum of a Kerr oscillator subjected to a squeezing drive. This squeezing drive resulting …

Chaotic behaviour is ubiquitous and plays an important part in most fields of science. In
classical physics, chaos is characterized by hypersensitivity of the time evolution of a system …

Abstract Silicon nitride (Si3N4) ceramics are used in numerous applications because of their
superior mechanical properties,. Their intrinsically brittle nature is a critical issue, but can be …