- Abstract:
- 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.
- Publication status:
- Published
- Publisher copy:
- 10.1103/PhysRevLett.82.2223
-
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- Journal:
- PHYSICAL REVIEW LETTERS
- Volume:
- 82
- Issue:
- 11
- Pages:
- 2223-2227
- Publication date:
- 1999-03-15
- DOI:
- EISSN:
-
1079-7114
- ISSN:
-
0031-9007
- URN:
-
uuid:da1f469e-1865-434d-b4fd-2b770a3511fc
- Source identifiers:
-
36953
- Local pid:
- pubs:36953
- Language:
- English
- Copyright date:
- 1999
Journal article
Cyclic phases at an n-fold degeneracy
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