Bonn 2025 – wissenschaftliches Programm
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QI: Fachverband Quanteninformation
QI 37: Poster – Quantum Information Technologies (joint session Q/QI)
QI 37.34: Poster
Donnerstag, 13. März 2025, 17:00–19:00, Tent
Multiplexing and Signal Optimization in Surface-Electrode Ion Trap Quantum Processors — •Janina Bätge1, Florian Ungerechts1, Rodrigo Munoz1, Mohammad Masum Billah1, Axel Hoffmann1,2, Giorgio Zarantonello1,3, and Christian Ospelkaus1,4 — 1Institut für Quantenoptik, Leibniz Universität Hannover, Germany — 2Institut für Hochfrequenztechnik und Funksysteme, Leibniz Universität Hannover, Germany — 3QUDORA Technologies GmbH, Braunschweig, Germany — 4Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
Scaling up ion trap quantum processors requires efficient management of control signals for the increasing number of control electrodes. We present three methods to minimize the number of signals by controlling multiple electrodes with shared inputs. The first method uses a bucket brigade for ion storage. The second employs switching electronics to sequentially charge multiple electrodes with a single signal. The final method uses switches to multiplex the control signals for ion transport through an X-junction. In this approach, it is crucial to optimize the assignment of electrodes to signals and determine the minimal number of signals needed for efficient shuttling.
Keywords: quantum information processing; trapped ions; QCCD architecture; ion transport