通过无关扰动塑造晶格：伊辛模型
Shaping Lattice through irrelevant perturbation: Ising model
摘要：
确定了周期边界条件下临界正方格子伊辛模型偏离连续CFT模型的主导无关扰动。我们计算了几类态的晶格理论和微扰CFT侧的谱的下一个主要$\sim 1/N^2$修正，总是得到精确的一致性。我们还讨论了扰动算子和高阶运动积分之间的关系。
英文摘要：
The leading irrelevant perturbation, which controls the deviation of critical square lattice Ising model with periodic boundary conditions from its continuous CFT analog is identified. An explicit expression for the coupling constant in terms of the anisotropy parameter is found. We calculate the next to leading $\sim 1/N^2$ corrections to the spectrum on both lattice theory and the perturbed CFT sides for several classes of states, always getting exact agreement. We discuss also how the perturbing operators and the higher integrals of motion are related.
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