Bonn 2025 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

A: Fachverband Atomphysik

A 21: Poster – Atomic Systems in External Fields

A 21.1: Poster

Mittwoch, 12. März 2025, 17:00–19:00, Tent

Electron-Phonon Coupling and Molecular Dynamics in Rydberg Atom Arrays — •Simon Euchner, Wilson S. Martins, and Igor Lesanovsky — Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany

Rydberg atoms held in optical tweezers feature electronic and vibrational degrees of freedom which can be brought into interaction in a controllable way. Therefore, these systems enable the investigation of dynamical phenomena, similar to those studied in molecular physics, but on exaggerated length and time scales. Beyond certain coupling strengths the vibrational motion becomes unstable, and we derive the critical values. Moreover, we investigate quantum corrections to the ground state energy, which are not captured by the Born-Oppenheimer approximation. Finally, we propose a protocol to prepare molecular states whose structure is strongly affected by the electron-phonon coupling. This shows that trapped Rydberg atom arrays indeed offer a versatile platform for the study of dynamical quantum phenomena that link to molecular physics.

Keywords: Electron-Phonon Coupling; Vibrations; Rydberg atoms