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A: Fachverband Atomphysik
A 11: Atomic Systems in External Fields I
A 11.4: Talk
Tuesday, March 3, 2026, 12:00–12:15, N 2
Trapped Rydberg ions as quantum simulators for coupled exciton-phonon dynamics — •Simon Euchner1, Mathias B. M. Svendsen1, and Igor Lesanovsky1,2 — 1Universität 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
Trapped Rydberg ions combine electronic and motional degrees of freedom, which can be coupled in a controllable fashion. This opens opportunities for the quantum simulation of molecular processes native to light-harvesting complexes, such as excitation energy (exciton) transport influenced by exciton-phonon (vibronic) coupling. We investigate how such a simulator could be designed, thereby highlighting its feasibility with state-of-the-art technology. Subsequently, we focus on a simplified model for the simulator. Based on this model we study finite temperature effects and the impact of different motional initial states on the dynamics. Moreover, we find that for certain motional states, two-phonon processes become relevant which can facilitate the exciton transport.
Keywords: Rydberg ions; Quantum simulation; Excitation energy transport; Vibronic coupling