Fidelity serves as a benchmark for the reliability in quantum information processes, and has
recently attracted much interest as a measure of the susceptibility of dynamics to …

In this review we summarize and amplify recent investigations of coupled quantum
dynamical systems with few degrees of freedom in the short-wavelength, semiclassical limit …

We investigate the average bipartite entanglement, over all possible divisions of a
multipartite system, as a useful measure of multipartite entanglement. We expose a …

It is widely recognized that entanglement generation and dynamical chaos are intimately
related in semiclassical models via the process of decoherence. In this paper, we propose a …

In this review we discuss approaches to numerical modelling of decoherence by a spin bath.
We consider several popular simulation methods, briefly discussing their implementation …

We investigate disordered one-and two-dimensional Heisenberg spin lattices across the
transition from integrability to quantum chaos from both statistical many-body and quantum …

Many-body states that are invariant under particle relabeling, the permutation symmetric
states, occur naturally when the system dynamics is described by symmetric processes or …

We study a one-dimensional Ising model with a magnetic field and show that tilting the field
induces a transition to quantum chaos. We explore the stationary states of this Hamiltonian …

We give a new explanation for why some biological systems can stay quantum coherent for
a long time at room temperature, one of the fundamental puzzles of quantum biology. We …

The problem of characterizing the complexity of quantum dynamics—in particular of locally
interacting chains of quantum particles—will be reviewed and discussed from several …