Freiburg 2024 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 22: Highly Charged Ions and their Applications I
A 22.1: Vortrag
Mittwoch, 13. März 2024, 14:30–14:45, HS 1098
Quantum-logic based search techniques for highly forbidden transitions in highly charged ions — •Shuying Chen1, Lukas J. Spieß1, Alexander Wilzewski1, Malte Wehrheim1, Kai Dietze1, Ivan Vybornyi2, Klemens Hammerer2, José R. Crespo López-Urrutia3, and Piet O. Schmidt1,4 — 1QUEST Institute for Experimental Quantum Metrology, Physikalisch-Technische Bundesanstalt, Braunschweig, Germany — 2Institute of Theoretical Physics, Leibniz Universität Hannover, Hannover, Germany — 3Max-Planck-Institut für Kernphysik, Heidelberg, Germany — 4Institut für Quantenoptik, Leibniz Universität Hannover, Hannover, Germany
Optical clocks are the most precise measurement devices, finding application in frequency metrology and fundamental physics. Highly charged ions (HCI) are promising candidates as a reference in optical clocks. To establish a next-generation HCI optical clock at the state-of-the-art precision, an HCI possessing a sub-Hz natural linewidth transition is required. Numerous candidate systems have been explored theoretically but experimental challenges remain due to the considerable uncertainty of the transition frequencies. In this work, we perform experimental and theoretical analysis of search techniques based on a two-ion crystal system confined within a linear Paul trap, with the goal of identifying ultra-narrow transitions in HCI. These techniques include Rabi excitation, the optical dipole force (ODF), and linear continuous sweeping (LCS).
Keywords: highly charged ions; optical clock; line search; quantum logic spectroscopy; trapped ion