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arXiv 1802.00601physics.chem-ph
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Li + LiCs体系低电子态的势能面

Potential energy surfaces of the low-lying electronic states of the Li + LiCs system

Patryk Jasik, Tymon Kilich, Jan Kozicki, Józef E. Sienkiewicz

摘要:

对混合碱金属三原子体系进行了量子化学从头计算。发现了三聚体基态和第一激发态的全局极小值,并计算了Li原子与LiCs分子相互作用的Born-Oppenheimer势能面.锂原子与锂铯二聚体的距离和键角不同。研究了Li $_2$ Cs分子在整体极小点时的三体非加性力.二聚体-原子相互作用被发现是强烈的吸引力,可能是重要的实验中,特别是涉及冷碱极性二聚体。

英文摘要:

Ab initio quantum chemistry calculations are performed for the mixed alkali triatomic system. Global minima of the ground and first excited doublet states of the trimer are found and Born-Oppenheimer potential energy surfaces of the Li atom interacting with the LiCs molecule were calculated for these states. The lithium atom is placed at various distances and bond angles from the lithium-caesium dimer. Three-body nonadditive forces of the Li$_2$Cs molecule in the global minimum are investigated. Dimer-atom interactions are found to be strongly attractive and may be important in the experiments, particularly involving cold alkali polar dimers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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