Bonn 2025 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 48: Poster – Quantum Optics, Technologies, and Optomechanics
Q 48.32: Poster
Wednesday, March 12, 2025, 17:00–19:00, Tent
Robust and miniaturized Zerodur based vacuum systems for quantum sensing applications — •David Latorre Bastidas1, Sören Boles-Herresthal1, Nora Bidzinski2, Bojan Hansen2, André Wenzlawski1, Ortwin Hellmig2, Klaus Sengstock2, and Patrick Windpassinger1 — 1Institute of Physics, Johannes Gutenberg University Mainz — 2Institute for Quantum Physics, Universität Hamburg
In recent years, quantum sensing technologies based on cold atoms have been proposed to solve existing problems in science and industry. To enhance the accessibility and robustness of these systems, we propose using Zerodur in the vacuum system. Zerodur is a glass ceramic with a negligible coefficient of thermal expansion (CTE), high mechanical strength, and low helium permeability, making it an ideal candidate for vacuum chambers. Its non-magnetizable and non-conductive properties allow for embedded wire structures within the vacuum chamber walls, enabling the generation of arbitrary 3D magnetic fields with high quality and minimal disturbances for atom cooling and trapping.
This poster focuses on the development of a passively pumped, stand-alone Zerodur vacuum chamber for quantum sensing applications, with an initial objective of demonstrating a MOT in a compact, shoebox-sized system. The chamber integrates non-evaporable getters and alkali metal dispensers activated by UV light. This system approach sets the foundation for future compact quantum sensors, offering significant potential for practical, real-world applications.
Keywords: Quantum technology; Vacuum technology; Quantum sensing; Mobile applications; Robustness and miniaturization