Cyclic phases at an n-fold degeneracy

被引：51

作者：

Manolopoulos, DE ^{[1
]}

Child, MS ^{[1
]}

机构：

[1] Phys & Theoret Chem Lab, Oxford OX1 3QZ, England

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.82.2223

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the sets of possible sign changes that can occur when n real quantum states are transported adiabatically around an n-fold degeneracy. The allowed sign changes include those predicted by the familiar spin j = (n - 1)/2 model as a subset, but we also find at least one other possible set of sign changes for each n > 2. Experimentally verifiable quadrilateral billiard examples are presented to illustrate these additional possibilities for 3- and 4-fold degeneracies.

引用

页码：2223 / 2227

页数：5

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