Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
A: Fachverband Atomphysik
A 36: Poster – Ultra-cold Atoms, Ions and BEC (joint session A/Q)
A 36.10: Poster
Donnerstag, 5. März 2026, 17:00–19:00, Philo 1. OG
MEMS-Mirror-driven Optical Tweezer for Neutral-Atom Quantum Computing. — •Marcel Keck1, Jonas Witzenrath1, Tobias Pätkau1, Jonas Gutsche1, Dieter Jaksch2, Niclas Luick2, Henning Moritz2, Thomas Niederprüm1, Herwig Ott1, Peter Schmelcher2, Klaus Sengstock2, Artur Widera1, Shanshan Gu-Stoppel3, Paul Raschdorf3, and Lena Wysocki3 — 1RPTU Kaiserslautern-Landau, 67663 Kaiserslautern, Germany — 2University of Hamburg, 22761 Hamburg, Germany — 3Fraunhofer Institute for Silicon Technology, 25524 Itzehoe, Germany
Neutral-atom-based quantum computers are a promising platform for addressing complex optimization problems. These require the ability to deterministically move atoms, not only for initializing a qubit array but also for reaching an all-to-all connectivity. Within the Rymax One project, we investigate mirrors based on Micro-Electro-Mechanical Systems (MEMS) technology to create movable optical tweezers. The development of a new piezo-electric material by the Fraunhofer ISIT that exhibits minimal hysteresis enables the precise positioning of a small mirror surface. In contrast to conventional methods (e.g., AODs), these mirrors introduce no position dependent frequency shift, allow atom movement in all three spatial dimensions, and have a high reflectivity across a broad range of frequencies, including the ultraviolet. To address the entire atomic array of the Rymax One quantum processor, we simulate an optical setup. We characterize different MEMS mirror models and find optimal parameters to ensure quick and stable movement. The oscillations that occur are eliminated.
Keywords: Neutral atom quantum computing; MEMS mirrors; movable Tweezers; Multi qubit gates