2015年9月
Bloch vector, disclination and exotic quantum holonomy
PHYSICS LETTERS A
- ,
- 巻
- 379
- 号
- 30-31
- 開始ページ
- 1693
- 終了ページ
- 1698
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.physleta.2015.05.009
- 出版者・発行元
- ELSEVIER SCIENCE BV
A topological formulation of the eigenspace anholonomy, where eigenspaces are interchanged by adiabatic cycles, is introduced. The anholonomy in two-level systems is identified with a disclination of the director (headless vector) of a Bloch vector, which characterizes eigenprojectors. The covering map structure behind the exotic quantum holonomy and the role of the homotopy classification of adiabatic cycles are elucidated. The extensions of this formulation to nonadiabatic cycles and N-level systems are outlined. (C) 2015 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.physleta.2015.05.009
- ISSN : 0375-9601
- eISSN : 1873-2429
- Web of Science ID : WOS:000356121800003