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arXiv 1004.0476hep-th
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微扰量子引力作为规范理论的双拷贝

Perturbative Quantum Gravity as a Double Copy of Gauge Theory

Zvi Bern, John Joseph M. Carrasco, Henrik Johansson

摘要:

在以前的论文中,我们观察到(经典)树级规范理论振幅可以重新排列,以显示颜色和运动学之间的二元性。一旦这是强加的,重力振幅获得使用规范理论图分子的两个副本。在这里,我们推测,这种对偶坚持所有量子圈的订单,因此可以用来获得多圈引力振幅容易从规范理论。作为一个非平凡的检验,我们证明了N = 4的超杨-米尔斯理论的三圈四点振幅可以排列成满足对偶性的形式,并通过取两个图分子得到了N = 8的相应振幅。我们还评论了一个非超对称的双回路测试的基础上纯杨-米尔斯理论导致重力耦合到反对称张量和介子。

英文摘要:

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 non-supersymmetric two-loop test based on pure Yang-Mills theory resulting in gravity coupled to an anti-symmetric tensor and dilaton.

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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