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arXiv 2302.14482hep-thnlin.CD
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混沌共形场论中的对称性与谱统计

Symmetries and spectral statistics in chaotic conformal field theories

Felix M. Haehl, Charles Marteau, Wyatt Reeves, Moshe Rozali

AI总结:

该研究针对大中心荷二维混沌共形场论,通过分离对称性效应与谱混沌特性,证明了近极值极限下随机矩阵普适性的自旋扇区独立性,并类比Cardy公式论证了大自旋区域的同类普适性。

摘要:

我们讨论了具有大中心荷的粗粒化混沌二维共形场论(CFTs)中的谱关联。我们研究了描述主态谱稠密部分的配分函数,以此将谱的混沌特性与由Virasoro对称性和模不变性导致的特性分离开来。我们提出,近极值极限下的随机矩阵普适性是每个自旋扇区各自独立的特征;这是一个非平凡的结论,因为精确谱完全仅由自旋零主态的谱和单个非零自旋主态的谱所决定(“谱确定性”)。随后我们描述了一个与推导Cardy态密度平均公式类似的论证,但在我们的研究中将其应用于谱关联:假设所有自旋扇区的近极值谱都具有统计普适性,我们在远离极值的大自旋区域中也发现了类似的随机矩阵普适性。

英文摘要:

We discuss spectral correlations in coarse-grained chaotic two-dimensional CFTs with large central charge. We study a partition function describing the dense part of the spectrum of primary states in a way that disentangles the chaotic properties of the spectrum from those which are a consequence of Virasoro symmetry and modular invariance. We argue that random matrix universality in the near-extremal limit is an independent feature of each spin sector separately; this is a non-trivial statement because the exact spectrum is fully determined by only the spectrum of spin zero primaries and those of a single non-zero spin ("spectral determinacy"). We then describe an argument analogous to the one leading to Cardy's formula for the averaged density of states, but in our case applying it to spectral correlations: assuming statistical universalities in the near-extremal spectrum in all spin sectors, we find similar random matrix universality in a large spin regime far from extremality.

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