| S=1/2海森堡自旋链的另一种求解方法 |
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| 引用本文： | 林念,于祖荣. S=1/2海森堡自旋链的另一种求解方法[J]. 物理学报, 1993, 42(12): 1990-1997 |
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| 作者姓名： | 林念 于祖荣 |
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| 作者单位： | 同济大学物理系,上海200092 |
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| 摘 要： | 利用置换群方法处理自由边界条件下S=1/2有限格点海森堡自旋链,得到所有本征能量及本征态,并在此基础上分析了基态和低激发态的性质。关键词：
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| 关 键 词： | 超导理论 海森堡自旋链 置换群 |
| 收稿时间： | 1993-02-12 |
A NEW METHOD TO SOLVE THE S = l/2 HEISENBERG SPIN CHAIN |
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| LIN NIAN and YU ZU-RONG. A NEW METHOD TO SOLVE THE S = l/2 HEISENBERG SPIN CHAIN[J]. Acta Physica Sinica, 1993, 42(12): 1990-1997 |
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| Authors: | LIN NIAN and YU ZU-RONG |
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| Abstract: | We present a new approach which is completely based on the permutation group theory to solve the eigenvalue problem of the S = 1/2 Heisenberg finite-chain with free-ends boundary. All of the eigenvalues and the corresponding eigenstates are obtained. The properties of the ground state and the low-lying excited states of the antiferromagnetic chain are examined. |
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