Free field construction for the eight-vertex model: representation for form factors
Free field construction for the eight-vertex model: representation for form factors
复制标题
八顶点模型的自由场构造：形状因子的表示
DOI：
10.1016/s0550-3213(01)00598-3
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
M. Lashkevich
中科院分区：
文献类型：
--
作者：
M. Lashkevich
八顶点模型的自由场实现扩展到形状因子。这是通过构造Λ算子的关于基态扇区的非对角矩阵元素来实现的，Λ算子建立了八顶点模型和SOS模型的角转移矩阵之间的关系。作为一个例子，明确地评估了σ z算子的两粒子形状因子。
The free field realization of the eight-vertex model is extended to form factors. It is achieved by constructing off-diagonal with respect to the ground state sectors matrix elements of the Λ operator which establishes a relation between corner transfer matrices of the eight-vertex model and of the SOS model. As an example, the two-particle form factor of the σzoperator is evaluated explicitly.