تقرير
$In$ $situ$ observation of non-polar to strongly polar atom-ion collision dynamics
| العنوان: | $In$ $situ$ observation of non-polar to strongly polar atom-ion collision dynamics |
|---|---|
| المؤلفون: | Berngruber, Moritz, Bosworth, Daniel J., Herrera-Sancho, Oscar A., Anasuri, Viraatt S. V., Zuber, Nico, Hummel, Frederic, Krauter, Jennifer, Meinert, Florian, Löw, Robert, Schmelcher, Peter, Pfau, Tilman |
| سنة النشر: | 2024 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Physics - Atomic Physics, Quantum Physics |
| الوصف: | The onset of collision dynamics between an ion and a Rydberg atom is studied in a regime characterized by a multitude of collision channels. These channels arise from coupling between a non-polar Rydberg state and numerous highly polar Stark states. The interaction potentials formed by the polar Stark states show a substantial difference in spatial gradient compared to the non-polar state leading to a separation of collisional timescales, which is observed in situ. For collision energies in the range of $k_\textrm{B}\cdot\mu$K to $k_\textrm{B}\cdot$K, the dynamics exhibit a counter-intuitive dependence on temperature, resulting in faster collision dynamics for cold - initially "slow" - systems. Dipole selection rules enable us to prepare the collision pair on the non-polar potential in a highly controlled manner, which determines occupation of the collision channels. The experimental observations are supported by semi-classical simulations, which model the pair state evolution and provide evidence for tunable non-adiabatic dynamics. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2401.12312 |
| رقم الأكسشن: | edsarx.2401.12312 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |