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arXiv 2007.11647hep-th
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2+1D Ising CFT中的主导轨迹

The leading trajectory in the 2+1D Ising CFT

Simon Caron-Huot, Yan Gobeil, Zahra Zahraee

摘要:

我们研究了在2+1维伊辛CFT块的散射,间接地,通过分析继续使用洛伦兹反演公式的频谱。我们发现的证据表明,该模型的截距是低于团结:$j_*\approx 0.8$,表明散射是渐近透明的对应于负李雅普诺夫指数。我们使用从数值共形引导得到的精确频谱作为输入。我们发现,截断的频谱允许反演公式再现的自旋2应力张量$10^{-4}$精度的属性,我们解决的问题,是否自旋0运营商的模型在于Regge轨迹。这一假设进一步得到了大N O(N)模型的分析支持。最后,我们证明了重算符的反常维数随能量以$(j_*-1)$控制的速率减小,这意味着重谱的规则性。

英文摘要:

We study the scattering of lumps in the 2+1-dimensional Ising CFT, indirectly, by analytically continuing its spectrum using the Lorentzian inversion formula. We find evidence that the intercept of the model is below unity: $j_*\approx 0.8$, indicating that scattering is asymptotically transparent corresponding to a negative Lyapunov exponent. We use as input the precise spectrum obtained from the numerical conformal bootstrap. We show that the truncated spectrum allows the inversion formula to reproduce the properties of the spin-two stress tensor to $10^{-4}$ accuracy and we address the question of whether the spin-0 operators of the model lie on Regge trajectories. This hypothesis is further supported by analytics in the large-N O(N) model. Finally, we show that anomalous dimensions of heavy operators decrease with energy at a rate controlled by $(j_*-1)$, implying regularity of the heavy spectrum.

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