Journal of the Physical Society of Japan
Analysis of Collisional Cross Sections of Rydberg nS and nD States of Ultracold Caesium Atoms
Zhigang Feng, Jingyuan Miao, Kejia Zhao, Difei Li, Zhijun Yang, Fan Wu, Zhaochun Wu, Jianming Zhao, Suotang Jia
Abstract
We present a simple analytical formula derived from an existing theoretical model and a detailed theoretical investigation of effects of the van der Waals interaction and dipole–dipole interaction on collisional cross sections as functions of various parameters. We analyze the main mechanism leading to large collisional cross sections on the basis of our previous experimental results using the present formula and also analyze the effects of some other factors on collisional cross sections.