Freiburg 2024 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 23: Poster I
Q 23.31: Poster
Dienstag, 12. März 2024, 17:00–19:00, Tent B
Recent developments on microfabricated Penning trap electrodes for matter-antimatter comparison tests. — •Nima Hashemi1,2,3, Julia-Aileen Coenders1,2, Jacob Stupp1,2, Friederike Giebel3, Jan Schaper1,2, Juan Manuel Cornejo1,2, Stefan Ulmer4,5, and Christian Ospelkaus1,2,3 — 1Leibniz Universität Hannover, Germany — 2LNQE, Hannover, Germany — 3Physikalisch Technische Bundesanstalt, Braunschweig, Germany — 4Ulmer Fundamental Symmetries Laboratory, Riken, Japan — 5Heinrich-Heine-Universität Düsseldorf, Germany
Penning ion traps have proven to be an excellent tool for g-factor comparison tests of matter and antimatter in the baryonic sector of the Standard Model [1,2]. At Leibniz University of Hannover, within the BASE collaboration [3], we are working on the development of quantum-logic inspired methods based on Coulomb coupling of single (anti-)protons to a laser-cooled beryllium ion for better particle localization and detection on these g-factor experiments [4]. Microfabricated Penning trap electrodes of 800 µ m inner diameter and a thickness of 200 µ m are necessary to gain full control over the coupling process. A challenging part of the microfabrication are the processes of photolithography because of three-dimensional structures and double-sided geometry of the electrodes. In this contribution recent methods for optimization of these processes are analyzed and evaluated.
[1] G. Schneider et al., Science 358, 1081 (2017) [2] C. Smorra et al., Nature 550, 371 (2017) [3] Eur. Phys. J. Spec. Top. 224, 3055-3108 (2015) [4] Juan M Cornejo et al 2021 New J. Phys. 23 073045
Keywords: Penning Trap; Microfabrication; Photolithography