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arXiv 1210.2255hep-th
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三代数和二代数规范理论双副本的等效D=3超引力振幅

Equivalent D=3 Supergravity Amplitudes from Double Copies of Three-Algebra and Two-Algebra Gauge Theories

Yu-tin Huang, Henrik Johansson

摘要:

我们表明,三维超引力振幅可以得到作为两个副本的三代数超陈-西蒙斯物质理论或两个代数超杨-米尔斯理论,当任何一个理论被组织显示颜色运动学的对偶性。我们证明,只有螺旋守恒的四维重力振幅有非零的后代时,减少到三维,这意味着消失的奇重S-矩阵元素,与陈-西蒙斯物质理论。我们对N= 12,10,8的超引力理论明确地验证了四点和六点的双拷贝对应,并讨论了它对所有多重性的有效性。

英文摘要:

We show that three-dimensional supergravity amplitudes can be obtained as double copies of either three-algebra super-Chern-Simons matter theory or that of two-algebra super-Yang-Mills theory, when either theory is organized to display the color-kinematics duality. We prove that only helicity-conserving four-dimensional gravity amplitudes have nonvanishing descendants when reduced to three dimensions; implying the vanishing of odd-multiplicity S-matrix elements, in agreement with Chern-Simons matter theory. We explicitly verify the double-copy correspondence at four and six points for N=12,10,8 supergravity theories and discuss its validity for all multiplicity.

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