Gravitational wave memory and the wave equation. (7th July 2022)

• Record Type: Journal Article
• Authors: Garfinkle, David
• Is Part Of: Classical and quantum gravity. Volume 39:Number 13(2022)
• Publication Date: 2022-07-07
• Subjects: gravitational wave memory -- wave equation -- electromagnetic memory; Quantum gravity -- Periodicals; Gravitation -- Periodicals; Relativity (Physics) -- Periodicals; Space and time -- Periodicals; Periodicals; 521.1
• DOI: 10.1088/1361-6382/ac7203
• Languages: English
• ISSNs: 0264-9381

Abstract

Abstract: Gravitational wave memory and its electromagnetic analog are shown to be straightforward consequences of the wave equation. From Maxwell's equations one can derive a wave equation for the electric field, while from the Bianchi identity one can derive a wave equation for the Riemann tensor in linearized gravity. Memory in both cases is derived from the structure of the source of those wave equations.