| Influence of Bipartite Qubit Coupling on Geometric Phase |
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| 作者姓名： | XING Lei LIANG Mai-Lin |
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| 作者单位： | [1]Department of Physics, Tsinghua University, Beijing 100084, China [2]Department of Physics, Tianjin University, Tianjin 300072, China |
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| 基金项目： | The project supported by National Natural Science Foundation of China under Grant No. 20376054 |
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| 摘 要： |
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| 关 键 词： | 几何相 海森堡双向系统 旋转磁场 准磁场 |
| 收稿时间： | 2005-10-14 |
| 修稿时间： | 2005-10-142006-02-16 |
Influence of Bipartite Qubit Coupling on Geometric Phase |
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| XING Lei LIANG Mai-Lin.Influence of Bipartite Qubit Coupling on Geometric Phase[J].Communications in Theoretical Physics,2006,46(1):51-54. |
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| Authors: | XING;Lei;LIANG;Mai-Lin |
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| Abstract: | The geometric phase of the bipartite Heisenberg spin-1/2 system with one spin driven by rotating magnetic field is investigated. It is found that in the one-site drive case, the intersubsystem coupling can be equivalent to a static quasi-magnetic field in the parameter space. This perspective has satisfactorily explained the irregular asymptote effect of geometric phase. We discuss the property of the two-site magnetic drive spin system and discover that a stationary state with no geometric phase shift is generated. |
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| Keywords: | geometric phase Heisenberg bipartite system rotating magnetic field |
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