散射振幅的超平移

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

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引用次数: 0

摘要

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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Supertranslations from Scattering Amplitudes

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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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

期刊介绍： Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks