中国物理B ›› 2013, Vol. 22 ›› Issue (5): 53701-053701.doi: 10.1088/1674-1056/22/5/053701
• ATOMIC AND MOLECULAR PHYSICS • 上一篇 下一篇
黄云霞a b, 徐淑武a b, 杨晓华a b
Huang Yun-Xia (黄云霞)a b, Xu Shu-Wu (徐淑武)a b, Yang Xiao-Hua (杨晓华)a b
摘要: We theoretically investigate the orientation of the cold KRb molecules induced in a switched electrostatic field by numerically solving the full time-dependent Schrödinger equation. The results show that the periodic field-free molecular orientation can be realized for the KRb molecules by rapidly switching off the electrostatic field. Meanwhile, by varying the switching times of the electrostatic field, the adiabatic and nonadiabatic interactions of the molecules with the applied field can be realized. Moreover, the influences of the electrostatic field strength and the rotational temperature to the degree of the molecular orientation are studied. The investigations show that, the increasing of the electrostatic field will increase the degree of the molecular orientation, both in the constant-field regime and in the field-free regime, while the increasing of the rotational temperature of the cold molecules will greatly decrease the degree of the molecular orientation.
中图分类号: (Other topics in mechanical control of atoms, molecules, and ions)