The work contains a detailed study of the scaling limit of a certain critical, integrable inhomogeneous six-vertex model subject to twisted boundary conditions. It is based on a numerical analysis of the Bethe ansatz equations as well as the powerful analytic technique of the ODE/IQFT correspondence. The results indicate that the critical behaviour of the lattice system is described by the gauged $\mathrm{SL}(2)$ WZW model with certain boundary and reality conditions imposed on the fields. Our proposal revises and extends the conjectured relation between the lattice system and the Euclidean black hole non-linear sigma model that was made in the 2011 paper of Ikhlef, Jacobsen and Saleur.

这项工作包含对某些关键的，可积分的不均匀六顶点模型在扭曲边界条件下的缩放极限的详细研究。它基于Bethe ansatz方程的数值分析以及ODE / IQFT对应关系的强大分析技术。结果表明，晶格系统的临界行为由量具描述。$\mathrm{SL}（2）$带有一定边界和实际条件的WZW模型。我们的建议修改并扩展了Ikhlef，Jacobsen和Saleur在2011年的论文中提出的晶格系统与欧几里得黑洞非线性sigma模型之间的猜想关系。