Freiburg 2024 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 8: Ultra-cold Plasmas and Rydberg Systems I (joint session A/Q)
Q 8.5: Vortrag
Montag, 11. März 2024, 18:00–18:15, HS 1010
Spectral signatures of vibronic coupling in trapped cold atomic Rydberg systems — •Joseph William Peter Wilkinson1, Weibin Li2, and Igor Lesanovsky1,2 — 1Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany — 2School of Physics and Astronomy and Centre for the Mathematics and Theoretical Physics of Quantum Non-Equilibrium Systems, The University of Nottingham, Nottingham, NG7 2RD, United Kingdom
Atoms and ions confined with electric and optical fields form the basis of many current quantum simulation and computing platforms. When excited to high-lying Rydberg states, long-ranged dipole interactions emerge which strongly couple the electronic and vibrational degrees of freedom through state-dependent forces. This vibronic coupling and the ensuing hybridization of internal and external degrees of freedom manifest through clear signatures in the many-body spectrum. In this talk, we briefly discuss the recent results in Ref. [1] wherein we consider the case of two trapped Rydberg ions that realize a quantum Rabi model due to the interaction between the relative vibrations and Rydberg states. We proceed to demonstrate that this hybridization can be probed by radio frequency spectroscopy and discuss observable spectral signatures at finite temperatures and for larger ion crystals.
8pt
[1]. J. W. P. Wilkinson, W. Li, and I. Lesanovsky, Spectral signatures of vibronic coupling in trapped cold atomic Rydberg systems, arXiv:2311.16998 (2023)
Keywords: Rydberg physics; trapped ions; spin-phonon coupling; radio spectroscopy; quantum Rabi model