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arXiv 1008.0872hep-thmath-phmath.MP
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sl(n)的Yangian| m)和泛R-矩阵

The Yangian of sl(n|m) and the universal R-matrix

Adam Rej, Fabian Spill

摘要:

本文研究了sl(n)的杨格数|m)超代数。我们导出了泛R-矩阵,并在基本表示上对其进行了评价,得到了具有酉修饰因子的标准杨R-矩阵。当m=0时,我们直接恢复了具有su(N)对称性的相对论可积模型的S-矩阵的CDD因子.因此,发现的通用R矩阵提供了一个抽象的插件公式,它导致的结果服从基本的物理约束:交叉对称性,幺正性和杨巴克斯特方程。这意味着杨格对偶将所有需要的对称统一到一个代数结构中。特别地,我们的分析在sl(n)的情况下是有效的|n),其中必须通过导致代数gl(n)的附加生成元来扩展代数|n)。在这种情况下,我们发现了双参数标量因子族,并对gl(1| 1)。

英文摘要:

In this paper we study Yangians of sl(n|m) superalgebras. We derive the universal R-matrix and evaluate it on the fundamental representation obtaining the standard Yang R-matrix with unitary dressing factors. For m=0, we directly recover up to a CDD factor the well-known S-matrices for relativistic integrable models with su(N) symmetry. Hence, the universal R-matrix found provides an abstract plug-in formula, which leads to results obeying fundamental physical constraints: crossing symmetry, unitrarity and the Yang-Baxter equation. This implies that the Yangian double unifies all desired symmetries into one algebraic structure. In particular, our analysis is valid in the case of sl(n|n), where one has to extend the algebra by an additional generator leading to the algebra gl(n|n). We find two-parameter families of scalar factors in this case and provide a detailed study for gl(1|1).

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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