Method for studying diatomic rovibrational spectra at a given vibrational state

查看全文 作　　者：Yi [1]Zhang;WeiGuo [2,3]Sun;Jia [2]Fu;QunChao [2]Fan;Jie [4]Ma;LianTuan [4]Xiao;SuoTang [4]Jia 机构地区：[1]College of Advanced Interdisciplinary Studies, National University of Defense Technology;[2]School of Science, Research Center for Advanced Computation, Xihua University;[3]Institute of Atomic and Molecular Physics, Sichuan University;[4]State key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory,Shanxi University 出　　处：《Science China(Physics,Mechanics & Astronomy)》索引2019年第62卷第4期,共6页 基　　金：supported by the Young Scientists Fund of the National Natural Science Foundation of China(Grant No.61701515);the China Postdoctoral Science Foundation(Grant No.2017M613367) 摘　　要：An algebraic method for rotational energies at a given vibrational state(AMr(v)) is proposed in this study in order to obtain unknown high-lying rovibrational energies. Applications of this method to the ground electronic state X^1Σ^+of CO and the excited state C^1Σ^+of^(39)K^7Li molecules show the following:(1) the AMr(v) can give the rational upper limit J of a rotational quantum number of a diatomic electronic state;(2) the full AMr(v) rovibrational energies {E_(υJ)}_υ of given vibrational states not only reproduce all known experimental data excellently but also predict precisely the values of all high-lying rovibrational energies,which may not be available experimentally. 关 键 词：rovibrational ENERGIES DIATOMIC systems ALGEBRAIC METHOD