Mainz 2026 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 70: Quantum Optics and Control II
Q 70.5: Talk
Friday, March 6, 2026, 12:15–12:30, P 3
Pulse Engineering via Projection of Response Functions at Infinite Nonlinear Order — •Lia Kley1,2 and Ludwig Mathey1,2,3 — 1Zentrum für Optische Quantentechnologien, Universität Hamburg, 22761 Hamburg, Germany — 2Institut für Quantenphysik, Universität Hamburg, 22761 Hamburg, Germany — 3The Hamburg Centre for Ultrafast Imaging, 22761 Hamburg, Germany
High-fidelity control of quantum systems requires methods that are both flexible and practical. We introduce a new method for optimal control that iteratively refines control parameters by evaluating the response of the fidelity to the applied control operators. It aims to implement target operations reliably with high fidelity, while extending established optimal-control techniques by providing access to the parameter update without the need for hyperparameter tuning, enhancing both practicality and applicability. To illustrate its potential, we discuss its application to a multi-qubit gate optimization task, comparing the method to existing approaches and highlighting improvements in usability and convergence relative to conventional strategies.
Keywords: Quantum Optimal Control; Response theory; Quantum Gates