Asymptotic Symmetries and Electromagnetic Memory
Sabrina Pasterski
TL;DR
This paper explores the relationship between asymptotic symmetries, soft factors, and electromagnetic memory effects at null infinity, completing the understanding of these connections in large U(1) gauge theories.
Contribution
It provides a comprehensive analysis of electromagnetic memory linked to large U(1) gauge symmetries at null infinity, extending prior theoretical frameworks.
Findings
Established the connection between asymptotic symmetries and electromagnetic memory.
Completed the triad linking gauge symmetries, soft factors, and observable memories.
Enhanced understanding of gauge theory at null infinity.
Abstract
Recent investigations into asymptotic symmetries of gauge theory and gravity have illuminated connections between gauge field zero-mode sectors, the corresponding soft factors, and their classically observable counterparts -- so called "memories." Here we complete this triad for the case of large U(1) gauge symmetries at null infinity.
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