| 关于量子不变量及其与量子相位关系的几点注记 |
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| 引用本文： | 李伯臧,张凌云,张向东.关于量子不变量及其与量子相位关系的几点注记[J].物理学报,1997,46(11):2080-2094. |
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| 作者姓名： | 李伯臧 张凌云 张向东 |
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| 作者单位： | 中国科学院物理研究所和凝聚态物理中心;山西大学理论物理研究所 |
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| 摘 要： | 基于量子不变量构造定理，简化地导出和扩充了Lewis和Riesenfeld的结果．指出所谓的Lewis-Riesenfeld相位一般没有物理意义；为了使其有物理意义，不变量必须取特殊形式．文中给出了这种形式．以磁场中的自旋系统为例，作了具体讨论．
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| 关 键 词： | 自旋系统 量子不变量 量子相位关系 磁场 |
| 收稿时间： | 1996-10-09 |
| 修稿时间： | 1/6/1997 12:00:00 AM |
NOTES ON THE QUANTUM INVARIANT AND ON THE-RELATION BETWEEN IT AND QUANTUM PHASE |
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| LI BO-ZANG,ZHANG LING-YUN and ZHANG XIANG-DONG.NOTES ON THE QUANTUM INVARIANT AND ON THE-RELATION BETWEEN IT AND QUANTUM PHASE[J].Acta Physica Sinica,1997,46(11):2080-2094. |
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| Authors: | LI BO-ZANG ZHANG LING-YUN and ZHANG XIANG-DONG |
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| Abstract: | Based on the construction theorem of quantum invariant,the results of Lewis and Riesenfeld are rededuced in a much simpler way and extended significantly.Meanwhile,it is pointed out that the Lewis Riesenfeld phases are in general not of physical meaning unless the invariants take specific forms which have been worked out.As an example,the spin system in a magnetic field is discussed in detail. |
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