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arXiv 2109.05050hep-thcond-mat.stat-mechmath-phmath.MP
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关于$c=0$ CFTs中恒等模的一个注记

A note on the identity module in $c=0$ CFTs

Yifei He, Hubert Saleur

摘要:

长期以来,人们一直认为具有消失中心电荷($c=0$)的非平凡共形场论(CFTs)是对数的。然而,到目前为止,除了应力-能量张量$T$和它的对数伙伴$t$(“$c\to 0$灾难”的解决方案)之外,恒等模的结构--恒等场的(左和右)Virasoro后代--还没有得到阐明。在本文中,我们确定这种结构连同相关的OPE的主要领域的水平$h=\bar{h}=2$的聚合物和渗滤CFTs。这是通过采取$O(n)$和Potts模型的$c\to 0$极限,并结合最近的结果从引导与参数的基础上共形不变性和自对偶。我们发现,该结构包含一个涉及领域$T\bar{T}$的秩3乔丹细胞,是相同的聚合物和渗滤。其特征部分在于非手性对数耦合$a_0=-{25\over 48}$的公共值。

英文摘要:

It has long been understood that non-trivial Conformal Field Theories (CFTs) with vanishing central charge ($c=0$) are logarithmic. So far however, the structure of the identity module -- the (left and right) Virasoro descendants of the identity field -- had not been elucidated beyond the stress-energy tensor $T$ and its logarithmic partner $t$ (the solution of the "$c\to 0$ catastrophe"). In this paper, we determine this structure together with the associated OPE of primary fields up to level $h=\bar{h}=2$ for polymers and percolation CFTs. This is done by taking the $c\to 0$ limit of $O(n)$ and Potts models and combining recent results from the bootstrap with arguments based on conformal invariance and self-duality. We find that the structure contains a rank-3 Jordan cell involving the field $T\bar{T}$, and is identical for polymers and percolation. It is characterized in part by the common value of a non-chiral logarithmic coupling $a_0=-{25\over 48}$.

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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