Freiburg 2024 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 42: Precision Measurements III (joint session Q/A)
A 42.8: Vortrag
Freitag, 15. März 2024, 16:15–16:30, HS 1221
Sideband Thermometry on Ion Crystals — •Ivan Vybornyi1, Laura Dreissen2,3, Dominik Kiesenhofer4,5, Helene Hainzer4,5, Matthias Bock4,5, Tuomas Ollikainen4,5, Daniel Vadlejch2, Christian Roos4,5, Tanja Mehlstäubler2,6, and Klemens Hammerer1 — 1Institut für theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany — 2Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany — 3Department of Physics and Astronomy, LaserLab, Vrije Universiteit, De Boeleaan, 1081 HV Amsterdam, The Netherlands — 4Universität Innsbruck, Institut für Experimentalphysik, Technikerstraße 25, 6020 Innsbruck, Austria — 5Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Technikerstraße 21a, 6020 Innsbruck, Austria — 6Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
Coulomb crystals of cold trapped ions are a leading platform for quantum computing, simulations and metrology. For these applications, it is essential to be able to determine the crystal's temperature with high accuracy, which is a challenging task for large crystals due to complex many-body correlations. Recently [arXiv:2306.07880v3] we presented an ion crystal thermometry method that deals with this problem. With two experiments (4 ions 1D linear chain and 19 ions 2D crystal) we test the new method and cross-check it via other techniques. The results confirm the new method being accurate and efficient. Current work aims to generalize ion thermometry for non-thermal states of motion.
Keywords: ion thermometry; ion crystals; ICCs; trapped ions