Quantum 2025 – scientific programme

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THU: Thursday Contributed Sessions

THU 13: Poster Session: Applications

THU 13.6: Poster

Thursday, September 11, 2025, 16:30–18:30, ZHG Foyer 1. OG

Towards fast ion separation for trapped ion quantum computing — •Lino Savaş¹, Rodrigo Munoz¹, Lars Krieger¹, Florian Ungerechts¹, Masum Billah¹, Janina Bätge¹, Phil Nuschke¹, and Christian Ospelkaus^1,2 — ¹Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany — ²Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany

A promising approach for a trapped-ion-based quantum computer is the quantum charge-coupled device architecture, as it enables scalability through the use of microfabrication methods and using junctions allows natural all-to-all connectivity of the qubit array.

Based on a surface electrode Paul trap, we disscuss current simulation results for separating Coulomb crystals while maintaining a constant trap frequency. This decreases the sensitivity to heating due to uncontrolled acceleration during the merging and splitting processes, which is a critical step for high fidelity quantum computing for trapped-ion based systems.

Keywords: Trapped-Ion Quantum Computing; Trapped Ions; Quantum Computing; QCCD; Quantum Engineering