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arXiv 2212.04513hep-thmath-phmath.MP
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杨-米尔斯理论的规范不变双副本:四次理论

Gauge invariant double copy of Yang-Mills theory: the quartic theory

Roberto Bonezzi, Christoph Chiaffrino, Felipe Diaz-Jaramillo, Olaf Hohm

AI总结:

本文基于同伦代数框架,提出了一种从杨-米尔斯理论构造引力的显式规范不变、离壳且局部的双副本方法(至四次阶),揭示了推广的Batalin-Vilkovisky代数是其基础结构,并成功应用于构造N=0超引力、推导4-引力子散射振幅及计算双场理论的规范结构。

摘要:

我们给出了从杨-米尔斯理论构造引力的显式规范不变、离壳且局部的双副本构造,精确至四次阶。为此,我们使用同伦代数框架,并识别出与褪色杨-米尔斯理论相关的一种丰富的新代数结构。该代数是Batalin-Vilkovisky代数的推广,是双副本所需的基础结构。我们通过在三维Chern-Simons理论中说明这些代数,给出了一个自洽的介绍。然后,我们用代数杨-米尔斯构建模块将N = 0超引力以双场理论的形式构造至相互作用的四次阶。作为同一通用公式的应用,我们重新推导了4-引力子散射振幅,并计算了双场理论Courant algebroid规范结构的手征形式。

英文摘要:

We give an explicit gauge invariant, off-shell and local double copy construction of gravity from Yang-Mills theory to quartic order. To this end we use the framework of homotopy algebras, and we identify a rich new algebraic structure associated to color-stripped Yang-Mills theory. This algebra, which is a generalization of a Batalin-Vilkovisky algebra, is the underlying structure necessary for double copy. We give a self-contained introduction into these algebras by illustrating them for Chern-Simons theory in three dimensions. We then construct N = 0 supergravity in the form of double field theory in terms of the algebraic Yang-Mills building blocks to quartic order in interactions. As applications of the same universal formula, we re-derive the 4-graviton scattering amplitude and compute a chiral form of the Courant algebroid gauge structure of double field theory.

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