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arXiv 1709.09159hep-th
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双迹流与沼泽地

Double-Trace Flows and the Swampland

Simone Giombi, Eric Perlmutter

摘要:

我们探讨的想法,大的$N$,非超对称共形场论与参数大的差距,以更高的自旋单迹运营商可能会获得作为红外不动点的相关双迹变形的超共形场论。在回顾了AdS的解释和这种流动的一些潜在的病理学之后,我们介绍了一个似乎可以避免它们的具体例子:在有限$k$上的ABJM理论,由$\int\!{\cal O}^2$变形,其中${\cal O}$是应力张量多重态中的超共形原色。我们解决它的关系,最近的acetutures的基础上弱重力边界,并讨论了更广泛的一类类似的可行流的前景。接下来,我们继续分析假定的IR CFT的光谱和关联函数,以引导$1/N$中的非平凡阶。这包括ABJM超共形原色的连接四点函数的双迹流下的变化的解析计算;以及无限类双迹复合算子的IR反常维数。这将是第一个解析结果的异常尺寸的有限自旋复合运营商在任何大型$N$ CFT $_3$与爱因斯坦引力对偶。

英文摘要:

We explore the idea that large $N$, non-supersymmetric conformal field theories with a parametrically large gap to higher spin single-trace operators may be obtained as infrared fixed points of relevant double-trace deformations of superconformal field theories. After recalling the AdS interpretation and some potential pathologies of such flows, we introduce a concrete example that appears to avoid them: the ABJM theory at finite $k$, deformed by $\int\!{\cal O}^2$, where ${\cal O}$ is the superconformal primary in the stress-tensor multiplet. We address its relation to recent conjectures based on weak gravity bounds, and discuss the prospects for a wider class of similarly viable flows. Next, we proceed to analyze the spectrum and correlation functions of the putative IR CFT, to leading non-trivial order in $1/N$. This includes analytic computations of the change under double-trace flow of connected four-point functions of ABJM superconformal primaries; and of the IR anomalous dimensions of infinite classes of double-trace composite operators. These would be the first analytic results for anomalous dimensions of finite-spin composite operators in any large $N$ CFT$_3$ with an Einstein gravity dual.

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