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arXiv 2512.09986hep-thhep-ph
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能量相关子的共形块与正性

Energy Correlator Conformal Blocks and Positivity

Los Alamos National Laboratory(洛斯阿拉莫斯国家实验室);Yale University(耶鲁大学);Heriot-Watt University(赫瑞瓦特大学);Carnegie Mellon University(卡内基梅隆大学)

Bianka Meçaj, Ian Moult, Matthew T. Walters, Yuan Xin

AI总结:

本文研究了能量-能量相关函数的共形块分解,并利用正性推导出CFT中应力-能量张量OPE系数的新界限,应用于3d伊辛CFT获得新约束。

摘要:

能量流算子的相关函数(能量-能量相关函数)是量子场论和引力中最简单的可观察量之一,其应用范围从现实世界的碰撞物理到限制一致理论的空间。在本文中,我们进一步发展了在共形场论(CFTs)中能量-能量相关函数的共形块分解,重点在于源-探测器算子乘积展开(OPE)。我们计算了在这种通道中一般共形块,考虑了在标量源背景下任意自旋的无迹对称算子,考虑了偶宇称和奇宇称的贡献。受共形Bootstrap数据可用性的启发,我们分析了这种源-探测器OPE的收敛性,以两个解耦CFT的张量积作为基本例子。最后,我们利用能量相关函数的正性,推导出涉及应力-能量张量的OPE系数的新界限,并在3d伊辛CFT的具体例子中应用这些界限,获得对偶宇称和奇宇称算子的新约束。

英文摘要:

Correlation functions of energy flow operators (energy-energy correlators) are one of the simplest observables in quantum field theory and gravity, with diverse applications ranging from real world collider physics to constraining the space of consistent theories. In this paper we further develop the conformal block decomposition of energy-energy correlators in conformal field theories (CFTs), focusing on the source-detector operator product expansion (OPE). We compute the general conformal blocks in this channel for traceless symmetric operators of arbitrary spin in the background of a scalar source, considering both parity-even and parity-odd contributions. Motivated by the availability of data from the conformal bootstrap, we analyze the convergence of this source-detector OPE, taking a tensor product of two decoupled CFTs as an elementary example. Finally, we use positivity of energy correlators to derive novel bounds on OPE coefficients involving the stress-energy tensor in generic CFTs, and demonstrate the application of these bounds in the specific example of the 3d Ising CFT, obtaining new constraints for both parity-even and parity-odd operators.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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