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arXiv 2102.04753hep-th
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Liouville场的私人生活导致Nambu-Goto字符串的新异常

Private life of the Liouville field that causes new anomalies in the Nambu-Goto string

Yuri Makeenko

摘要:

我认为高阶项的Seeley膨胀的热核,这对于光滑的度量被抑制为逆功率的UV截止$Λ$,并演示他们如何导致一个异常的贡献后,做不确定性$Λ^{-2}\times Λ^2$的字符串有效的行动。对于Polyakov弦,这些异常精确地再现了用共形场论技术对Liouville理论得到的KPZ-DDK结果。对于Nambu-Goto弦,我发现了与这个结果的偏差,这表明两个弦公式可能不同。

英文摘要:

I consider higher-order terms of the Seeley expansion of the heat kernel, which for smooth metrics are suppressed as inverse powers of the UV cutoff $Λ$, and demonstrate how they result in an anomalous contribution to the string effective action after doing uncertainties $Λ^{-2}\times Λ^2$. For the Polyakov string these anomalies precisely reproduce at one loop the result of KPZ-DDK obtained for the Liouville theory by the conformal field theory technique. For the Nambu-Goto string I find a deviation from this result which shows that the two string formulations may differ.

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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