Abstract
A driving current induces in the vacuum a response current, but the response must not precede its cause. This application of the principle of causality enables one to derive the Pauli-Rose result for first-order vacuum polarization from the most elementary calculation in quantum electrodynamics: the absorption of a single photon (with $\ensuremath{-}{k}_{\ensuremath{\alpha}}{k}^{\ensuremath{\alpha}}g4{{k}_{m}}^{2}$) by a negative-energy electron. This calculation is also given.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
