Speaker: Daniel Reich, University of Kassel

Title: Efficient Characterization and Optimal Control of Open Quantum Systems

Abstract:

Since no system can ever be completely isolated from its environment the study of open quantum systems is pivotal to reliably and accurately control complex quantum systems. In practice, reliability of the control needs to be confirmed via certification of the target evolution while accuracy requires the derivation of high-fidelity control schemes in the presence of decoherence. We present frameworks for highly efficient characterization of unitary transformations and their application to gate certification and Optimal Control Theory. Furthermore, we devise control techniques that work not only against but also with the environment to fulfill certain quantum control tasks. In particular, we will demonstrate the power of Optimal Control Theory in the presence of environmental effects for vibrational cooling of molecules and superconducting quantum gate implementations.

Coffee/tea and bread rolls will be served at 10:00