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arXiv 2006.04839hep-th
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自由配分函数与平均全息对偶

Free partition functions and an averaged holographic duality

Nima Afkhami-Jeddi, Henry Cohn, Thomas Hartman, Amirhossein Tajdini

摘要:

我们研究了二维自由玻色CFTs的环面配分函数。在Narain模量上积分定义了系综平均自由CFT。我们计算的平均配分函数,并表明,它可以被重新解释为一个总和在三维拓扑结构。这一结果使我们猜想,二维平均自由CFT与具有$U(1)^c \times U(1)^c$对称性和复合边界引力子的三维奇异引力理论是全息对偶的。此外,对于小中心荷$c$,我们得到了一般的限制的自由CFTs的光谱间隙使用自旋模块引导,构建的例子Narain紧化与一个大的差距,并找到一个解析的引导功能对应于一个单一的自对偶玻色子。

英文摘要:

We study the torus partition functions of free bosonic CFTs in two dimensions. Integrating over Narain moduli defines an ensemble-averaged free CFT. We calculate the averaged partition function and show that it can be reinterpreted as a sum over topologies in three dimensions. This result leads us to conjecture that an averaged free CFT in two dimensions is holographically dual to an exotic theory of three-dimensional gravity with $U(1)^c \times U(1)^c$ symmetry and a composite boundary graviton. Additionally, for small central charge $c$, we obtain general constraints on the spectral gap of free CFTs using the spinning modular bootstrap, construct examples of Narain compactifications with a large gap, and find an analytic bootstrap functional corresponding to a single self-dual boson.

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