Geometric phase of a bipartite system with Dzyaloshinski-Moriya interaction
- Zhou, Y
- Zhang, GF
- Zhang, GF, Beijing Univ Aeronaut & Astronaut, Dept Phys, Sch Sci, Xueyuan Rd 37, Beijing 100083, Peoples R China. 电子邮箱地址: gf1978zhang@sohu.com
Publication date
January 2008
DOI ISSN
0030-4018 Citation count (estimate)
5Abstract
The Berry phase of a bipartite system described by a Heisenberg XXZ model driven by a one-site magnetic field is investigated. The effect of the Dzyaloshinski-Moriya (DM) anisotropic interaction on the Berry phase is discussed. It is found that the DM interaction affects the Berry phase monotonously. and can also cause sudden change of the Berry phase for some weak magnetic field cases. (c) 2008 Elsevier B.V. All rights reserved
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