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arXiv 2408.12923math-phcond-mat.stat-mechmath.MP
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非可积伊辛模型中边界自旋关联的标度极限

The scaling limit of boundary spin correlations in non-integrable Ising models

Giulia Cava, Alessandro Giuliani, Rafael Leon Greenblatt

AI总结:

本研究针对非可积二维伊辛模型,通过Grassmann积分表示与多尺度分析,证明其半平面临界理论中边界自旋关联的长程主导行为与最近邻模型一致(含解析重整化常数),标度极限为显式矩阵的Pfaffian,推广了先前结果。

摘要:

我们考虑一类非可积二维伊辛模型,该模型通过弱有限范围势扰动最近邻模型得到,此势保持平移和自旋翻转对称性,我们研究其半平面中的临界理论。我们证明,边界自旋关联函数的主导阶长距离行为与最近邻模型相同,仅差一个解析乘法重整化常数。特别地,标度极限是显式矩阵的Pfaffian。证明基于关联生成函数的Grassmann积分精确表示及多尺度分析,将先前结果推广至包含边界可观测量的情形。

英文摘要:

We consider a class of non-integrable 2D Ising models obtained by perturbing the nearest-neighbor model via a weak, finite range potential which preserves translation and spin-flip symmetry, and we study its critical theory in the half-plane. We prove that the leading order long-distance behavior of the correlation functions for spins on the boundary is the same as for the nearest-neighbor model, up to an analytic multiplicative renormalization constant. In particular, the scaling limit is the Pfaffian of an explicit matrix. The proof is based on an exact representation of the generating function of correlations in terms of a Grassmann integral and on a multiscale analysis thereof, generalizing previous results to include observables located on the boundary.

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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