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arXiv 1012.5900math-phhep-thmath.MP
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$s\ell_q(2)$ -不变Yang-Baxter方程在单位根处的新解

New solutions to the $s\ell_q(2)$-invariant Yang-Baxter equations at roots of unity

D. Karakhanyan, Sh. Khachatryan

摘要:

我们发现新的解决方案,杨巴克斯特方程的$R$ -矩阵具有$sl_q(2)$对称性的根单位,使用不可分解的表示。相应的量子一维链模型,它可以被视为XXZ模型的单位根的扩展,进行了研究。我们考虑$q^4=1$的情况。这些模型的哈密顿算符通常是非厄米算符。考虑到量子代数$sl_q(2)$和量子超代数$osp_t(1|2)$的表示之间的对应关系,本文的分析可以推广到后一种情况,只要变形参数取适当的值.

英文摘要:

We find new solutions to the Yang-Baxter equations with the $R$-matrices possessing $sl_q(2)$ symmetry at roots of unity, using indecomposable representations. The corresponding quantum one-dimensional chain models, which can be treated as extensions of the XXZ model at roots of unity, are investigated. We consider the case $q^4=1$. The Hamiltonian operators of these models as a rule appear to be non-Hermitian. Taking into account the correspondence between the representations of the quantum algebra $sl_q(2)$ and the quantum super-algebra $osp_t(1|2)$, the presented analysis can be extended to the latter case for the appropriate values of the deformation parameter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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