308 citations · 1.1k across the 28 of their papers we have counts for
28 papers
Reachability in Infinite Dimensional Unital Open Quantum Systems with Switchable GKS-Lindblad Generators
Frederik vom Ende, Gunther Dirr, Michael Keyl +1
In quantum systems theory one of the fundamental problems boils down to: given an initial state, which final states can be reached by the dynamic system in question. Here we consid…
Quantum control in infinite dimensions and Banach-Lie algebras: Pure point spectrum
Michael Keyl
In finite dimensions, controllability of bilinear quantum control systems can be decided quite easily in terms of the "Lie algebra rank condition" (LARC), such that only the system…
Optimal Control of Hybrid Optomechanical Systems for Generating Non-Classical States of Mechanical Motion
Ville Bergholm, Witlef Wieczorek, Thomas Schulte-Herbrueggen +1
Cavity optomechanical systems are one of the leading experimental platforms for controlling mechanical motion in the quantum regime. We exemplify that the control over cavity optom…
Controllability of the Jaynes-Cummings-Hubbard model
Margret Heinze, Michael Keyl
In quantum control theory, the fundamental issue of controllability covers the questions whether and under which conditions a system can be steered from one pure state into another…
Controlling a d-level atom in a cavity
Thomas Hofmann, Michael Keyl
In this paper we study controllability of a -level atom interacting with the electromagnetic field in a cavity. The system is modelled by an ordered graph . The vertices of $…
Schwartz operators
Michael Keyl, Jukka Kiukas, Reinhard F. Werner
In this paper we introduce Schwartz operators as a non-commutative analog of Schwartz functions and provide a detailed discussion of their properties. We equip them in particular w…