On the scaling behaviour of an integrable spin chain with Zr symmetry
On the scaling behaviour of an integrable spin chain with Zr symmetry
复制标题
Zr对称性可积自旋链的标度行为
DOI：
10.1016/j.nuclphysb.2023.116269
复制
发表时间：
2023
影响因子：
2.8
通讯作者：
Lukyanov, Sergei L.
中科院分区：
文献类型：
--
作者：
Kotousov, Gleb A.;Lukyanov, Sergei L.
这项工作的主题是一个1D量子自旋-12链与非均匀六顶点模型具有额外的Zr对称性。该模型是在一定的参数域，它是关键的研究。在ODE/IQFT方法中，提出了一类描述系统标度极限的常微分方程和量化条件。一些显着的特点CFT的关键行为进行了观察。其中包括共形初级态的无限简并性和在偶数r的情况下谱中存在连续分量。
The subject matter of this work is a 1D quantum spin-1 2 chain associated with the inhomogeneous six-vertex model possessing an additional Z r symmetry. The model is studied in a certain parametric domain, where it is critical. Within the ODE/IQFT approach, a class of ordinary differential equations and a quantization condition are proposed which describe the scaling limit of the system. Some remarkable features of the CFT underlying the critical behaviour are observed. Among them is an infinite degeneracy of the conformal primary states and the presence of a continuous component in the spectrum in the case of even r.