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arXiv 2609.07846hep-th

翻转零弦的双重拷贝

Double Copy from the Flipped Null String

Arjun Bagchi, Sachin Grover, Sharang Rajesh Iyer, Amartya Saha, Stephan Stieberger

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中文总结 AI 辅助

本研究通过翻转零弦的世界面构造,揭示了双重拷贝结构源于Carrollian动力学,并统一了高阶导数规范理论与引力振幅的对应关系。

中文摘要 AI 辅助

我们研究了翻转真空中玻色零弦树级振幅的双重拷贝结构。我们证明,其一级矢量关联子提供了高阶导数$(DF)^2$规范理论的Cachazo-He-Yuan (CHY)运动学半积分,而区分的紧致动量-绕数扇区则生成互补的Parke-Taylor因子。对于可分解的二级态,同一Carrollian世界面产生两个运动学半积分,从而对称双重拷贝到六阶导数Weyl三次引力子扇区。具有共同外部动量的格点扇区再现了Bern-Carrasco-Johansson (BCJ)排序关系及相应的场论Kawai-Lewellen-Tye (KLT)表示。这些结果为双重拷贝提供了直接的Carrollian世界面起源,并指向与紧致格点的$O(d,d)$结构相容的涌现色扇区的当前代数实现。

英文摘要

We study the double-copy structure of tree amplitudes of the bosonic null string in the flipped vacuum. We show that its level-one vector correlator supplies the Cachazo-He-Yuan (CHY) kinematic half-integrand of the higher-derivative $(DF)^2$ gauge theory, while distinguished compact momentum-winding sectors generate the complementary Parke-Taylor factor. For factorized level-two states, the same Carrollian world-sheet produces two kinematic half-integrands and hence the symmetric double copy to the six-derivative Weyl-cubed graviton sector. Lattice sectors with common external momenta reproduce the Bern-Carrasco-Johansson (BCJ) ordering relation and the corresponding field-theory Kawai-Lewellen-Tye (KLT) representation. These results provide a direct Carrollian world-sheet origin of the double copy and point toward a current-algebra realization of the emergent color sector compatible with the $O(d,d)$ structure of the compact lattice.

发表机构

  • Indian Institute of Technology Kanpur(坎普尔印度理工学院)
  • Max-Planck Institut für Physik, Werner–Heisenberg–Institut(马克斯·普朗克物理研究所,维尔纳·海森堡研究所)

机构由 AI 辅助整理,请以论文原文为准。

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