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arXiv 2406.18523hep-thmath-phmath.MP
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全各向异性 ${\ m SU}(2)$ 主手征场及其变形的可积性与重整化性

Integrability and renormalizability for the fully anisotropic ${\rm SU}(2)$ principal chiral field and its deformations

G. A. Kotousov, D. A. Shabetnik

AI总结:

本文以全各向异性 ${\ m SU}(2)$ 主手征场为例,研究了非线性 sigma 模型中经典可积性与单圈重整化性的联系,发现了一类新的四参数经典可积模型,并导出了其耦合常数流方程及重整化群不变量。

摘要:

对于被称为非线性 sigma 模型的 $1+1$ 维场论类,已知其经典可积性与单圈重整化性之间存在深刻联系。本文以所谓的全各向异性 ${\ m SU}(2)$ 主手征场(PCF)为例回顾了这一现象。在此过程中,我们发现了一类新的经典可积的四参数 sigma 模型族,它是通过 Poisson-Lie 变形从全各向异性 ${\ m SU}(2)$ PCF 得到的。该理论被证明是单圈可重整化的,并导出了描述四个耦合常数流的 ODE 系统。此外,还给出了函数独立的一阶积分(重整化群不变量)完整集合的显式解析表达式。

英文摘要:

For the class of $1+1$ dimensional field theories referred to as the non-linear sigma models, there is known to be a deep connection between classical integrability and one-loop renormalizability. In this work, the phenomenon is reviewed on the example of the so-called fully anisotropic ${\rm SU}(2)$ Principal Chiral Field (PCF). Along the way, we discover a new classically integrable four parameter family of sigma models, which is obtained from the fully anisotropic ${\rm SU}(2)$ PCF by means of the Poisson-Lie deformation. The theory turns out to be one-loop renormalizable and the system of ODEs describing the flow of the four couplings is derived. Also provided are explicit analytical expressions for the full set of functionally independent first integrals (renormalization group invariants).

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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