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arXiv 1704.01698hep-thhep-lat
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模糊球上标量场理论中的关联函数与重整化

Correlation functions and renormalization in a scalar field theory on the fuzzy sphere

Kohta Hatakeyama, Asato Tsuchiya

摘要:

研究模糊球上标量场理论中的重整化。该理论通过矩阵模型实现,其中矩阵大小起UV截止的作用。利用Berezin符号与场的一致性定义了关联函数,并通过蒙特卡罗模拟非微扰地计算了它们。我们发现,2点和4点的功能是独立的矩阵大小通过调整参数和执行波函数重整化。结果有力地表明,该理论在普通意义下是非微扰可重整化的。

英文摘要:

We study renormalization in a scalar field theory on the fuzzy sphere. The theory is realized by a matrix model, where the matrix size plays the role of a UV cutoff. We define correlation functions by using the Berezin symbol identified with a field and calculate them nonperturbatively by Monte Carlo simulation. We find that the 2-point and 4-point functions are made independent of the matrix size by tuning a parameter and performing a wave function renormalization. The results strongly suggest that the theory is nonperturbatively renormalizable in the ordinary sense.

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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