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Perturbative quantum gravity as a double copy of gauge theory

Bern, Zvi ; Carrasco, John Joseph M ; Johansson, Henrik

Physical review letters, 2010-08, Vol.105 (6), p.061602-061602, Article 061602 [Periódico revisado por pares]

United States

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Título:
Perturbative quantum gravity as a double copy of gauge theory
Autor: Bern, Zvi ; Carrasco, John Joseph M ; Johansson, Henrik
Assuntos: AMPLITUDES ; COLOR MODEL ; COMPOSITE MODELS ; DIAGRAMS ; DUALITY ; FEYNMAN DIAGRAM ; FIELD THEORIES ; GAUGE INVARIANCE ; GRAVITATION ; INFORMATION ; INVARIANCE PRINCIPLES ; MATHEMATICAL MODELS ; PARTICLE MODELS ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; QUANTUM FIELD THEORY ; QUANTUM GRAVITY ; QUARK MODEL ; SUPERGRAVITY ; TENSORS ; UNIFIED-FIELD THEORIES ; YANG-MILLS THEORY
É parte de: Physical review letters, 2010-08, Vol.105 (6), p.061602-061602, Article 061602
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: In a previous paper we observed that (classical) tree-level gauge-theory amplitudes can be rearranged to display a duality between color and kinematics. Once this is imposed, gravity amplitudes are obtained using two copies of gauge-theory diagram numerators. Here we conjecture that this duality persists to all quantum loop orders and can thus be used to obtain multiloop gravity amplitudes easily from gauge-theory ones. As a nontrivial test, we show that the three-loop four-point amplitude of N=4 super-Yang-Mills theory can be arranged into a form satisfying the duality, and by taking double copies of the diagram numerators we obtain the corresponding amplitude of N=8 supergravity. We also remark on a nonsupersymmetric two-loop test based on pure Yang-Mills theory resulting in gravity coupled to an antisymmetric tensor and dilaton.
Editor: United States
Idioma: Inglês

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Perturbative quantum gravity as a double copy of gauge theory

Bern, Zvi ; Carrasco, John Joseph M ; Johansson, Henrik

United States

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