摘要
The Ionization Potential (IP) is qualitatively de ned as the amount of energy to remove the most loosely bound electron of an isolated gaseous atom to form a cation, or the released energy of moving a single electron from in nity to the surface of a cation. So the IP value is related to the electronic structure and is one of the fundamental parameters of the atom. We introduced a new experimental method to measure the Rydberg state energy levels of 87Rb atom and got its rst ionization potential to be 33 690.946(7) cm??1.
基金
National Natural Science Foundation of China(11274316, 21203216, 11404346), "One Hundred Talents Program" of Chinese Academy of Sciences