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Q: Fachverband Quantenoptik und Photonik
Q 35: Precision Spectroscopy of Atoms and Ions III (joint session A/Q)
Q 35.1: Hauptvortrag
Mittwoch, 12. März 2025, 11:00–11:30, HS PC
A planar rotor in an ion crystal — •Monika Leibscher1, Ferdinand Schmidt-Kaler2, and Christiane P. Koch1 — 1Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin, Germany — 2QUANTUM, Institut für Physik, Universität Mainz, Germany
Charged molecules and nanoparticles are a promising platform for quantum sensing, quantum information or for tests of fundamental physics. Their rotational structure is amenable to sideband quantum logic spectroscopy if it can be coupled to the collective vibrations of a mixed crystal, composed of atomic ions and one molecular ion, or one charged nanoparticle. We model the dipole coupling by a planar rotor in the center of a linear ion Coulomb crystal. Calculating the dipole interaction for particles with mass ranging from diatomic molecular ions to that of charged silicon nanoclusters we identify its strength. We identify ranges, where the resulting energy splitting is sufficiently large to be detected by state-of-the-art sideband laser spectroscopy.
Keywords: trapped molecular ion; sideband laser spectroscopy; mixed Coulomb crystal