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arXiv 0710.3522hep-lathep-th
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有限温度下的K弦张力与可积模型

K-string tensions at finite temperature and integrable models

Michele Caselle, Pietro Giudice, Ferdinando Gliozzi, Paolo Grinza, Stefano Lottini

摘要:

最近有人指出,规范系统在约束相中的波利雅科夫关联函数的简单标度性质表明,低温区的k弦张力比在T^3阶项以下是常数。本文认为,至少在三维Z_4规范模型中,上述比值在整个束缚相中是恒定的。这一结果是通过结合数值实验与已知的精确结果的质谱的可积的二维自旋模型描述的红外行为的规范系统附近的退细化过渡。

英文摘要:

It has recently been pointed out that simple scaling properties of Polyakov correlation functions of gauge systems in the confining phase suggest that the ratios of k-string tensions in the low temperature region is constant up to terms of order T^3. Here we argue that, at least in a three-dimensional Z_4 gauge model, the above ratios are constant in the whole confining phase. This result is obtained by combining numerical experiments with known exact results on the mass spectrum of an integrable two-dimensional spin model describing the infrared behaviour of the gauge system near the deconfining transition.

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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