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Double Copy from Homotopy Algebras
Fortschritte der Physik ( IF 5.6 ) Pub Date : 2021-08-21 , DOI: 10.1002/prop.202100075
Leron Borsten 1 , Hyungrok Kim 1 , Branislav Jurčo 2 , Tommaso Macrelli 3 , Christian Saemann 1 , Martin Wolf 3
Affiliation  

We show that the BRST Lagrangian double copy construction of urn:x-wiley:00158208:media:prop202100075:prop202100075-math-0001 supergravity as the ‘square’ of Yang–Mills theory finds a natural interpretation in terms of homotopy algebras. We significantly expand on our previous work arguing the validity of the double copy at the loop level, and we give a detailed derivation of the double-copied Lagrangian and BRST operator. Our constructions are very general and can be applied to a vast set of examples.

中文翻译:

同伦代数的双重复制

我们表明,urn:x-wiley:00158208:media:prop202100075:prop202100075-math-0001作为杨-米尔斯理论的“平方”的超引力的 BRST 拉格朗日双副本构造在同伦代数方面找到了自然的解释。我们显着扩展了我们之前在循环级别论证双重复制有效性的工作,并给出了双重复制拉格朗日算子和 BRST 算子的详细推导。我们的构造非常通用,可以应用于大量示例。
更新日期:2021-09-17
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