论文标题
Rydberg Atom-ion碰撞在寒冷的环境中
Rydberg atom-ion collisions in cold environments
论文作者
论文摘要
理论上研究了Rydberg Atom-Ion系统的低能碰撞。我们介绍了与Rydberg Atom-Ion碰撞动力学的合适方法相关的参数空间，即Quantum-，Langevin和经典交换制度，表明对于最低的可达到的温度，经典治疗是合适的。准经典轨迹方法用于研究li $^*$ - li $^+$和li $^*$ -cs $^+$ collision Energies的电荷交换交叉部分，降至$ 1 \，$ k。对于冷碰撞，我们发现电荷交换横截面与$ n^4 $几何标度偏差。此外，对于低能量碰撞，我们发现了离子核心抑制的影响，也发现了用于描述电子核能电位的两个不同模型的变化。
Low-energy collisions of Rydberg atom-ion systems are investigated theoretically. We present the parameter space associated with suitable approaches for the dynamics of Rydberg atom-ion collisions, i.e. quantum-, Langevin and classical exchange regimes, showing that for the lowest reachable temperatures a classical treatment is appropriate. A quasi-classical trajectory method is used to study charge exchange cross sections for Li$^*$-Li$^+$ and Li$^*$-Cs$^+$ at collision energies down to $1\,$K. For cold collisions we find the charge exchange cross section deviating from the $n^4$ geometric scaling. Furthermore, for low-energy collisions, we find both an influence of the ionic core-repulsion as well as variations for two different models used for describing the electron-core potential.
