Berlin 2024 – wissenschaftliches Programm
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QI: Fachverband Quanteninformation
QI 6: Trapped Ion and Atom Qubits
QI 6.3: Vortrag
Montag, 18. März 2024, 15:45–16:00, HFT-FT 131
Atom transport optimization: theoretical frameworks, control algorithms, and experimental integration. — •Cristina Cicali1,2, Robert Zeier1, Felix Motzoi1,2, and Tommaso Calarco1,2,3 — 1Forschungszentrum Jülich,Peter Grünberg Institute, Quantum Control (PGI-8), 52425 Jülich, Germany — 2Institute for Theoretical Physics, University of Cologne, 50937 Köln, Germany — 3Dipartimento di Fisica e Astronomia, Università di Bologna, 40127 Bologna, Italy
Ultracold atoms constitute a promising platform for quantum computing and quantum simulation. We study the transport of individual atoms in optical tweezers using methods of optimal control. As part of the BMBF project FemiQP, we are developing a theoretical framework for numerically optimizing atom transport trajectories, including strategies aimed at maximizing the transport fidelity, velocity, and robustness against experimental imperfections. Quantum control algorithms such as the dressed-CRAB (d-CRAB) and Gradient Ascent Pulse Engineering (GRAPE) are compared with regard to their utility to effectively optimize the atom transport. In collaboration with the group Christian Groß, optimized control protocols are adapted to the experimental platform in Tübingen.
Keywords: Quantum control; Atom transport; Neutral atoms