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arXiv 1611.09620math-phmath.MP
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双超杨格$DY(\mathfrak{gl}(m|n))$和Bethe向量的电流表示

Current presentation for the double super-Yangian $DY(\mathfrak{gl}(m|n))$ and Bethe vectors

A. Hutsalyuk, A. Liashyk, S. Z. Pakuliak, E. Ragoucy, N. A. Slavnov

摘要:

我们发现量子可积模型的Bethe向量与超对称杨格$Y(\mathfrak{gl}(m|n)$的杨格双$DY(\mathfrak{gl}(m|n))$的电流发电机。更具体地说,我们使用的方法投影到不同类型的Borel子代数在这个无限维代数的交叉,以构造Bethe向量。通过计算这些投影,超对称Bethe向量可以用泛单值矩阵元的矩阵元表示。使用两个不同的,但同构的当前实现的杨双$DY(\mathfrak{gl}(m|n))$,我们得到两个不同的介绍Bethe向量。这些Bethe向量也服从一些递归关系证明他们的等价性。

英文摘要:

We find Bethe vectors for quantum integrable models associated with the supersymmetric Yangians $Y(\mathfrak{gl}(m|n)$ in terms of the current generators of the Yangian double $DY(\mathfrak{gl}(m|n))$. More specifically, we use the method of projections onto intersections of different type Borel subalgebras in this infinite dimensional algebra to construct the Bethe vectors. Calculating these projection the supersymmetric Bethe vectors can be expressed through matrix elements of the universal monodromy matrix elements. Using two different but isomorphic current realizations of the Yangian double $DY(\mathfrak{gl}(m|n))$ we obtain two different presentations for the Bethe vectors. These Bethe vectors are also shown to obey some recursion relations which prove their equivalence.

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