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arXiv 1901.09604math-phmath.MPnlin.SI
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扭转边界条件下XXZ自旋链的关联函数

Correlation functions of the XXZ spin chain with the twisted boundary condition

Yi Qiao, Zhirong Xin, Xiaotian Xu, Kun Hao, Tao Yang, Junpeng Cao, Wen-Li Yang

摘要:

基于非齐次$T-Q$关系和非对角Bethe Answer构造的Bethe态,得到了具有扭曲(或反周期)边界条件的XXZ自旋链的标积、形状因子和关联函数.结果表明,两个离壳Bethe态的标量积、形状因子和两点关联函数可以表示为某些行列式的和。研究了相应的齐次极限。并通过数值计算进行了验证。

英文摘要:

The scalar products, form factors and correlation functions of the XXZ spin chain with twisted (or antiperiodic) boundary condition are obtained based on the inhomogeneous $T-Q$ relation and the Bethe states constructed via the off-diagonal Bethe Ansatz. It is shown that the scalar product of two off-shell Bethe states, the form factors and the two-point correlation functions can be expressed as the summation of certain determinants. The corresponding homogeneous limits are studied. The results are also checked by the numerical calculations.

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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