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。
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.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1993年第12期1990-1997,共8页
Acta Physica Sinica
基金
国家自然科学基金
