Topological Chern indices in molecular spectra

被引：47

作者：

Faure, F

Zhilinskii, B

机构：

[1] CNRS, Maison Magistres Jean Perrin, LPMMC, F-38042 Grenoble 9, France

[2] Univ Littoral, MREID, F-59140 Dunkerque, France

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.85.960

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Topological Chern indices are related to the number of rotational states in each molecular vibrational band. Modification of the indices is associated to the appearance of "band degeneracies," and exchange of rotational states between two consecutive bands. The topological dynamical origin of these indices is demonstrated through a semiclassical approach, and their values are computed in two examples. The relation with the integer quantum Hall effect is briefly discussed.

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页码：960 / 963

页数：4

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