代数对称$\mathfrak{gl}(2|1)$相关模型中关联函数的主方程
Master equation for correlation functions in algebra symmetry $\mathfrak{gl}(2|1)$ related models
摘要:
我们考虑可积模型的嵌套代数Bethe变换和解决与$\mathfrak{gl}(2|1)$或$\mathfrak{gl}(3)$代数对称。模拟求和公式,以前制定的标量产品,建立的形状因子和关联函数。这些公式是对具有$\mathfrak{gl}(2)$对称$R$ -矩阵的模型的某些早期结果的直接推广。它还表明,在代数对称$\mathfrak{gl}(2|1)$相关模型的情况下,这样的公式允许建立一个多重积分表示的关联函数和形状因子。
英文摘要:
We consider integrable models solved by the nested algebraic Bethe ansatz and associated with $\mathfrak{gl}(2|1)$ or $\mathfrak{gl}(3)$ algebra symmetry. The analogue of sum formulae, previously formulated for scalar products, is established for the form factors and correlation functions. These formulae are direct generalisation of the some earlier results derived for models with $\mathfrak{gl}(2)$ symmetric $R$-matrix. It is also shown that in the case of algebra symmetry $\mathfrak{gl}(2|1)$ related models such formula allows to establish a multiple integral representation for correlation functions and form factors.
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