Gomez Humberto, Lipinski Jusinskas Renann
Department of Mathematical Sciences, Durham University, Stockton Road, DH1 3LE Durham, United Kingdom.
Facultad de Ciencias Basicas, Universidad Santiago de Cali, Calle 5 N° 62-00 Barrio Pampalinda, Cali, Valle, Colombia.
Phys Rev Lett. 2021 Oct 29;127(18):181603. doi: 10.1103/PhysRevLett.127.181603.
In this Letter, we present the first multiparticle solutions to Einstein's field equations in the presence of matter. These solutions are iteratively obtained via the perturbiner method, which can circumvent gravity's infinite number of vertices with the definition of a multiparticle expansion for the inverse spacetime metric as well. Our construction provides a simple layout for the computation of tree level field theory amplitudes in D spacetime dimensions involving any number of gravitons and matter fields, with or without supersymmetry.
在本信函中，我们给出了存在物质情况下爱因斯坦场方程的首个多粒子解。这些解是通过微扰方法迭代得到的，该方法通过对逆时空度规定义多粒子展开，也能规避引力的无穷多个顶点。我们的构建为计算(D)维时空下涉及任意数量引力子和物质场（有无超对称性）的树图水平场论振幅提供了一个简单的布局。
