Application of the discrete Wentzel-Kramers-Brillouin method to spin tunneling

被引：23

作者：

Garg, A ^{[1
]}

机构：

[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

来源：

JOURNAL OF MATHEMATICAL PHYSICS | 1998年 / 39卷 / 10期

关键词：

D O I：

10.1063/1.532563

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A discrete version of the Wentzel-Kramers-Brillouin (WKB) method is developed and applied to calculate the tunnel splittings between classically degenerate states of spin Hamiltonians. The results for particular model problems are in complete accord with those previously found using instanton methods. The discrete WKB method is more elementary and also yields wave functions. (C) 1998 American Institute of Physics. [S0022-2488(98)03710-4].

引用

页码：5166 / 5179

页数：14

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