Quantum Radiation Reaction and the Green's Function Decomposition
Atsushi Higuchi, Giles D. R. Martin
TL;DR
This paper investigates how radiation reaction affects the position of a charged scalar particle's wave packet in quantum electrodynamics, using Green's functions to connect quantum and classical perspectives.
Contribution
It re-expresses the quantum position shift formula in terms of electromagnetic Green's functions, clarifying the link between quantum and classical radiation-reaction derivations.
Findings
Position shift analyzed in the $7 o 0$ limit
Reformulation using electromagnetic Green's functions
Clarifies quantum-classical correspondence in radiation reaction
Abstract
We analyze the change in position (the position shift) of the wave packet of a charged scalar particle due to radiation reaction in the limit of quantum electrodynamics. In particular, we re-express the formula previously obtained for the position shift in terms of Green's functions for the electromagnetic field, thus clarifying the relation between the quantum and classical derivations of the radiation-reaction force.
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