Inelastic black hole scattering from charged scalar amplitudes
Inelastic black hole scattering from charged scalar amplitudes
复制标题
DOI：
10.1007/jhep03(2018)044
复制
发表时间：
2017-11
影响因子：
5.4
通讯作者：
A. Luna;I. Nicholson;D. O’Connell;C. White
中科院分区：
文献类型：
--
作者：
A. Luna;I. Nicholson;D. O’Connell;C. White
我们解释了如何在广义相对论中的两个史瓦西黑洞的非弹性散射过程中产生的最低阶的经典引力辐射可以从一个树散射振幅耦合到标量场的规范理论中获得。量规计算通过双拷贝与重力相关。我们通过在规范理论中引入一个无质量标量来消除双拷贝中可能出现的不必要的标量力，该标量在与引力的联系中被视为鬼。我们希望这些方法是一个步骤，在更高的订单在经典微扰理论的双副本的直接应用，极大地简化重力计算的唯象应用的潜力。
We explain how the lowest-order classical gravitational radiation produced during the inelastic scattering of two Schwarzschild black holes in General Relativity can be obtained from a tree scattering amplitude in gauge theory coupled to scalar fields. The gauge calculation is related to gravity through the double copy. We remove unwanted scalar forces which can occur in the double copy by introducing a massless scalar in the gauge theory, which is treated as a ghost in the link to gravity. We hope these methods are a step towards a direct application of the double copy at higher orders in classical perturbation theory, with the potential to greatly streamline gravity calculations for phenomenological applications.