2 papers
physics.atom-ph2026
QED vacuum polarization in the Coulomb field of a nucleus: a method of high-order calculation
Sergey Volkov
A calculation of the QED vacuum polarization potential in the Coulomb field of a pointlike nucleus was presented in an earlier publication by the author and his collaborators. Corr…
physics.atom-ph2025
Two-loop vacuum polarization in a Coulomb field
S. A. Volkov, V. A. Yerokhin, Z. Harman +1
The leading-order two-loop vacuum-polarization potential, linear in the Coulomb field of a nucleus, was first derived in the seminal 1955 work of Källén-Sabry. The higher-order t…