Quantized non-adiabatic coupling terms to ensure diabatic potentials

被引:78
作者
Baer, M [1 ]
Alijah, A
机构
[1] Inst Atom & Mol Sci, Taipei 10764, Taiwan
[2] Soreq NRC, Dept Phys & Appl Math, IL-81800 Yavne, Israel
[3] Univ Coimbra, Dept Chem, P-3049 Coimbra, Portugal
[4] Univ Bielefeld, Dept Chem, D-4800 Bielefeld, Germany
关键词
D O I
10.1016/S0009-2614(00)00195-0
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A way to derive rigorous diabatic potentials from non-adiabatic coupling terms (NACTs) was suggested some time ago [M. Baer. Chem, Phys. Lett. 35 (1975) 112]. This approach could be applied only for cases when the NACTs are regular throughout configuration space. In this work a criterion is established to be fulfilled by NACTs which yields continuous and uniquely diabatic potentials defined throughout configuration space. It is found that this requirement leads to a kind of 'quantization' with regard to the non-regular NACTs. A two-state model and a three-state model were considered as examples. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:489 / 493
页数:5
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