The sl2 Loop Algebra Symmetry of the Six-Vertex Model at Roots of Unity
The sl2 Loop Algebra Symmetry of the Six-Vertex Model at Roots of Unity
复制标题
统一根处六顶点模型的 sl2 循环代数对称性
DOI:
10.1142/s0217979202011615
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发表时间:
1999
影响因子:
1.6
通讯作者:
B. McCoy
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文献类型:
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作者:
T. Deguchi;K. Fabricius;B. McCoy
We demonstrate that the six vertex model (XXZ spin chain) with Δ=(q+q-1)/2 and q2N=1 has an invariance under the loop algebra of sl2 which produces a special set of degenerate eigenvalues. For Δ=0 we compute the multiplicity of the degeneracies using Jordan–Wigner techniques.
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