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Q: Fachverband Quantenoptik und Photonik
Q 64: Poster – Precision Spectroscopy of Atoms and Ions (joint session A/Q)
Q 64.1: Poster
Donnerstag, 13. März 2025, 17:00–19:00, Tent
Highly Charged Heavy Ions for Quantum Logic Spectroscopy and Novel Optical Clocks — •Lukas Kau1,2,3, Nadine Homburg1,2,3, Zoran Andelkovic1, Thomas Stöhlker1,2,3, and Peter Micke1,2,3 — 1GSI Helmholtz Centre for Heavy Ion Research, Darmstadt — 2Helmholtz Institute Jena — 3Friedrich Schiller University Jena
Heavy, highly charged ions (HCI), such as hydrogen- or lithium-like ions, possess unique properties that make them ideal for probing the fundamental laws of physics. These simple atomic systems offer forbidden optical transitions in their hyperfine structure and extreme electromagnetic fields to which their bound electrons are exposed.
We are developing a versatile platform for quantum logic spectroscopy of heavy HCI (e.g. 207Pb81+ with a clock transition at 1020 nm). To achieve this, we are leveraging on recent advancements in precision spectroscopy [1] and clock operation [2] with medium-light HCI of intermediate charge state (40Ar13+) and the heavy-ion accelerator chain of GSI for ion production and deceleration. Quantum logic spectroscopy, carried out in a cryogenic Paul trap, has the potential to improve the accuracy of optical hyperfine-structure transitions by many orders of magnitude to enable unprecedented tests of fundamental physics.
[1] P. Micke et al., Nature 578, 60–65 (2020), [2] S. A. King et at. Nature 611, 43–47 (2022).
Keywords: Highly Charged Ions; Quantum Logic Spectroscopy; Optical Clocks; Ion Trap; Fundamental Physics