Gravitational and electromagnetic memory
Pujian Mao, Wen-Di Tan
TL;DR
This paper unifies the study of gravitational and electromagnetic memory effects, demonstrating how a charged particle's motion reveals both velocity and position memory effects, and recovers known formulas in the field.
Contribution
It provides a unified framework for understanding gravitational and electromagnetic memory effects through particle motion analysis.
Findings
Recovery of known gravitational memory formulas
Recovery of known electromagnetic memory formulas
Unified description of memory effects in Einstein-Maxwell theory
Abstract
We present a unified investigation of memory effect in Einstein-Maxwell theory. We specify two types of memory effect, a velocity kick and a position displacement, by examining the motion of a single free falling charged test particle. Our result recovers the two known gravitational memory effect formulas and the two known electromagnetic memory effect formulas.
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