Supertranslations from Scattering Amplitudes

IF 9 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Physical review letters Pub Date : 2025-10-08 DOI:10.1103/fxdk-5qwc

Asaad Elkhidir, Donal O’Connell, Radu Roiban

引用次数: 0

Abstract

On shell methods have found a new application to local observables such as asymptotic radiation fields and gravitational waveforms. While these observables are invariant under small gauge transformations, they are known to depend on a choice of asymptotic gauge; in gravity on asymptotically Minkowski spacetimes, this is a choice of Bondi-Van der Burg-Metzner-Sachs frame. In this Letter, we provide a method for capturing these supertranslations, to all orders in perturbation theory, using the on shell framework of scattering amplitudes.

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散射振幅的超平移

壳层方法在局部观测如渐近辐射场和引力波等方面有了新的应用。虽然这些观测值在小规范变换下是不变的，但已知它们依赖于渐近规范的选择；在渐近闵可夫斯基时空的引力中，这是Bondi-Van der Burg-Metzner-Sachs框架的选择。在这篇文章中，我们提供了一种方法来捕捉这些超平移，在微扰理论的所有阶，使用散射振幅的壳框架。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical review letters 物理-物理：综合

CiteScore

16.50

自引率

7.00%

发文量

2673

审稿时长

2.2 months

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