65 citations · 210 across the 11 of their papers we have counts for
4 papers · 1 filter
Quantum transport through partial barriers in higher-dimensional systems
Jonas Stöber, Arnd Bäcker, Roland Ketzmerick
Partial transport barriers in the chaotic sea of Hamiltonian systems influence classical transport, as they allow for a small flux between chaotic phase-space regions only. We esta…
Classical Drift in the Arnold Web Induces Quantum Delocalization Transition
Jan Robert Schmidt, Arnd Bäcker, Roland Ketzmerick
We demonstrate that quantum dynamical localization in the Arnold web of higher-dimensional Hamiltonian systems is destroyed by an intrinsic classical drift. Thus quantum wave packe…
Characterizing quantum chaoticity of kicked spin chains
Tabea Herrmann, Maximilian F. I. Kieler, Arnd Bäcker
Quantum many-body systems are commonly considered as quantum chaotic if their spectral statistics, such as the level spacing distribution, agree with those of random matrix theory.…
Fast Bit-Flipping based on a Stability Transition of Coupled Spins
Maximilian F. I. Kieler, Arnd Bäcker
A bipartite spin system is proposed for which a fast transfer from one defined state into another exists. For sufficient coupling between the spins, this implements a bit-flipping…