| 多自旋耦合量子态简并度的计算 |
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| 引用本文： | 徐军华,郝云芳.多自旋耦合量子态简并度的计算[J].西安邮电学院学报,2011,16(2):62-64. |
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| 作者姓名： | 徐军华 郝云芳 |
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| 作者单位： | 1. 西安邮电学院理学院,陕西,西安,710121
2. 西安培华学院电气信息工程学院,陕西,西安,710065 |
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| 基金项目： | 陕西省教育厅专项科研计划资助项目 |
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| 摘 要： | 根据角动量耦合的基本理论,分析了任意多个粒子自旋耦合量子态的简并度的计算方法。针对粒子N数量虿⒍增大时计算变的复杂,提出了多粒子自旋耦合量子态|s,m窦g(N,S)的一种计算方法。并对于全部自旋-1/2或者自旋-1粒子组成的多粒子体系,给出了耦合简并度的具体解析表达式。它适合计算任意多个粒子自旋耦合量子态的简并度,通过程序计算更加方便。
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| 关 键 词： | 角动量耦合 简并度 自旋系统 |
Calculating the degeneracy of the multi-spin coupled quantum state |
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| XU Jun-hua,HAO Yun-fang.Calculating the degeneracy of the multi-spin coupled quantum state[J].Journal of Xi'an Institute of Posts and Telecommunications,2011,16(2):62-64. |
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| Authors: | XU Jun-hua HAO Yun-fang |
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| Affiliation: | XU Jun-hua1,HAO Yun-fang2(1.School of Science,Xi'an University of Posts and Telecommunications,Xi'an 710121,China,2.The Electrical and Information Engineering Department of Peihua College,Xi'an 710065,China) |
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| Abstract: | Theory of momentum coupling of multiple spins is studied. A general formula for the degeneracy of the multi-particle coupled quantum state Is, m 〉is drawn out, which is convenient for the numerical calculation. Moreover, for the special cases of the spin- 1/2 as well as the spin- 1 particles, the analytical expressions for the degeneracy of the coupled quantum states are presented. |
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| Keywords: | coupling of the angular momentum degeneracy analytical expression spin system |
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