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arXiv 0811.2879hep-lat
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超越自由近似的约束弦:随机渗流的情形

Confining string beyond the free approximation: the case of random percolation

Pietro Giudice, Ferdinando Gliozzi, Stefano Lottini

摘要:

随机渗流模型可以被看作是一个定义良好的限制规范理论的对偶;由于这个理论,没有Monte Carlo动力学在所有,是简单的模拟,它是可能的,以非常高的精度研究通量管的性质;我们表明,它可以描述的有效弦图片。我们的结果与晶格正则化无关,因此在连续极限中也得到了很好的定义,而且在规范理论中,第一次有可能在计算sigma(T)泰勒展开式的T^6系数的整个过程中确定次领先的量子修正。此外,该系数结果与通用比T_c/ \sqrt{sigma_0}有关。

英文摘要:

The random percolation model can be viewed as the dual of a well defined confining gauge theory; since this theory, having no Monte Carlo dynamics at all, is simple to simulate, it is possible to study the properties of the flux tube with very high precision; we show it can be described by the effective string picture. Our results are lattice regularisation independent, therefore they are well defined also in the continuum limit, and, for the first time in a gauge theory, it has been possible to determine the next-to-leading quantum corrections throughout the computation of the T^6 coefficient of the Taylor expansion of sigma(T). Furthermore, this coefficient results to be related to the universal ratio T_c/\sqrt{sigma_0}.

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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