arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.12557hep-th
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高能模自举、整体对称性和缺陷

High Energy Modular Bootstrap, Global Symmetries and Defects

Sridip Pal, Zhengdi Sun

摘要:

我们推导出Cardy公式的运营商在不同部门的酉$2$维CFT的拓扑缺陷线的存在下,把一个上限和下限的数量的状态与标度尺寸的间隔$[Δ-δ,Δ+δ]$为大$Δ$在固定的$δ$。因此,我们证明了,给定任何酉模不变$2$ D CFT对称下有限的全球对称$G$(忠实地行事),所有的不可约表示的$G$出现在频谱的untwisted部门的状态的增长是Cardy样的,并成比例的“平方”的维数的irrep。在Schwarzian极限下,结果与体规范理论下的JT引力的结果一致。如果对称性是非反常的,则结果适用于任何被群元素扭曲的扇区。对于$c>1$,这些陈述适用于Virasoro原色。此外,该结果适用于大的c CFTs。我们也将我们的结果推广到连续$U(1)$组。

英文摘要:

We derive Cardy-like formulas for the growth of operators in different sectors of unitary $2$ dimensional CFT in the presence of topological defect lines by putting an upper and lower bound on the number of states with scaling dimension in the interval $[Δ-δ,Δ+δ]$ for large $Δ$ at fixed $δ$. Consequently we prove that given any unitary modular invariant $2$D CFT symmetric under finite global symmetry $G$ (acting faithfully), all the irreducible representations of $G$ appear in the spectra of the untwisted sector; the growth of states is Cardy like and proportional to the ''square'' of the dimension of the irrep. In the Schwarzian limit, the result matches onto that of JT gravity with a bulk gauge theory. If the symmetry is non-anomalous, the result applies to any sector twisted by a group element. For $c>1$, the statements are true for Virasoro primaries. Furthermore, the results are applicable to large c CFTs. We also extend our results for the continuous $U(1)$ group.

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