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摘要翻译：
分析了二维四态Potts模型在临界点附近的能量、比热、磁化强度和磁化率的蒙特卡罗(MC)和级数展开(SE)数据。讨论了对数修正的作用，并提出了在确定临界振幅时用数值计算这些修正的方法。给出了通用振幅比$a+/a-$，$\gamma+/\gamma-$，$\gammat/\gamma-$和$r_c^\pm$的精确估计，对前人的工作提出了新的问题。
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英文标题：
《A study of logarithmic corrections and universal amplitude ratios in the
two-dimensional 4-state Potts model》
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作者：
Lev Shchur (LITP), Bertrand Berche (LPM), Paolo Butera (INFN)
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最新提交年份：
2007
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分类信息：
一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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一级分类：Physics 物理学
二级分类：High Energy Physics - Lattice 高能物理-晶格
分类描述：Lattice field theory. Phenomenology from lattice field theory. Algorithms for lattice field theory. Hardware for lattice field theory.
晶格场论。从晶格场论到现象学。格场论的算法。晶格场论硬件。
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一级分类：Physics 物理学
二级分类：High Energy Physics - Theory 高能物理-理论
分类描述：Formal aspects of quantum field theory. String theory, supersymmetry and supergravity.
量子场论的形式方面。弦理论，超对称性和超引力。
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英文摘要：
Monte Carlo (MC) and series expansion (SE) data for the energy, specific heat, magnetization and susceptibility of the two-dimensional 4-state Potts model in the vicinity of the critical point are analysed. The role of logarithmic corrections is discussed and an approach is proposed in order to account numerically for these corrections in the determination of critical amplitudes. Accurate estimates of universal amplitude ratios $A_+/A_-$, $\Gamma_+/\Gamma_-$, $\Gamma_T/\Gamma_-$ and $R_C^\pm$ are given, which arouse new questions with respect to previous works.
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PDF链接：
https://arxiv.org/pdf/707.243
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