Mainz 2026 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 12: Quantum Computing and Simulation II
Q 12.3: Vortrag
Montag, 2. März 2026, 17:45–18:00, P 10
A dual-species Rydberg array for distributed quantum information processing — •Adrien Bouscal1,2,3, Mullai Sampangi1,2,3,4, Max Gewald1,2,3, Pit Steinmetz1,2,3,4, Balázs Dura-Kovács1,2,3, Mehmet Öncü1,2,3, Jacopo de Santis1,2,3, Dimitrios Vasileiadis1,2,3,4, and Johannes Zeiher1,2,3 — 1LMU München, 80799 München, Germany — 2Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany — 3Munich Center for Quantum Science and Technology, 80799 München, Germany — 4Technische Universität München, 85748 Garching, Germany
Quantum error correction requires ancilla qubits that can be replenished, reset, and read out mid-circuit without disturbing the data qubits. A dual-species architecture enables these capabilities through element-selective optical addressing with inherently low crosstalk. We report on the design of a compact dual-element source for a hybrid tweezer array combining rubidium (Rb) and ytterbium (Yb) coupled to an optical cavity. An atomic beam of Yb from an effusion cell is trapped in a 2D MOT after being slowed in a short Zeeman slower, whose magnetic field gradient is produced by the 2D MOT permanent magnets. From this transversely-cooled beam, a 3D MOT and tweezers will be loaded in a separate science cell. We also plan to implement continuous reloading of Rb qubits via transport with an optical conveyor belt from a distant 3D MOT. This platform enables interfacing logical quantum processors with optical modes and opens perspectives for fast feedback, long-lived nuclear-qubit memories, quantum networking, and distributed quantum information processing.
Keywords: tweezer array; quantum computing; dual-element; quantum error correction