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 analyze time evolution of spread complexity (SC) in an isolated interacting quantum
many-body system when it is subjected to a sudden quench. Characteristics features of the …

arXiv:1206.6348v1 [nlin.CD] 27 Jun 2012 Page 1 arXiv:1206.6348v1 [nlin.CD] 27 Jun 2012
Loschmidt Echo Arseni Goussev1, Rodolfo A. Jalabert2, Horacio M. Pastawski3, and Diego …

Decoherence causes entropy increase that can be quantified using, eg, the purity ς= T r ρ 2.
When the Hamiltonian of a quantum system is perturbed, its sensitivity to such perturbation …

We derive a simple and general relation between the fidelity of quantum motion,
characterizing the stability of quantum dynamics with respect to arbitrary static perturbation …

GaAs-based two-dimensional electron gases (2DEGs) show a wealth of remarkable
electronic states,,, and serve as the basis for fast transistors, research on electrons in …

We investigate the sensitivity of quantum systems that are chaotic in a classical limit to small
perturbations of their equations of motion. This sensitivity, originally studied in the context of …

We study numerically and analytically isolated interacting quantum systems that are taken
out of equilibrium instantaneously (quenched). The probability of finding the initial state in …

We discuss the behavior of fidelity for a classically chaotic quantum system. We show the
existence of a critical value of the perturbation above which the quantum decay, exponential …