Mainz 2026 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 3: Quantum Technologies – Enabling Technologies

Q 3.3: Vortrag

Montag, 2. März 2026, 12:15–12:30, P 5

Microwave Generation for the Manipulation of Rubidium Ensembles — •Valeria Camacho Molina, Maike Diana Lachmann, and Tobias Bartusch — Airbus Defence and Space GmbH , Willy-Messerschmitt-Strasse 1, 82024 ,Taufkirchen , Germany

Ultra-cold atomic ensembles, with their microscopic coherence times, narrow momentum distributions, and highly controllable quantum states, are essential for high-precision measurements and advanced quantum technologies. Precise control of both the internal and motional states of the atoms is critical for reproducible and accurate performance.

In this work, a microwave subsystem is implemented to drive evaporative cooling of a Rubidium-87 atomic ensemble in a magnetic trap to achieve Bose*Einstein condensation. Additionally, after condensation, the system is used for state preparation, transferring the atoms in well-defined internal states to ensure reproducible and controlled experimental conditions. The subsystem integrates low-phase-noise frequency generation, agile frequency control, and thermally stable electronics to achieve consistent and reproducible performance. Its compact, robust, and low-power design makes it well suited for space-deployable quantum sensors, where reliability and environmental robustness are critical.

Keywords: microwave; Ultra-cold atomic ensembles; state preparation; evaporative cooling