2 papers
quant-ph2025
Spontaneous emission in dipole approximation -- revisited
Paul R. Berman, Peter W. Milonni
Spontaneous emission in dipole approximation is studied theoretically using both source-field theory and a Schrodinger picture approach. Using source-field theory we obtain formal…
quant-ph2025
Effect of Self-Interaction on Feynman's Interpretation of the Lamb Shift
Peter W. Milonni, Paul R. Berman, Kanu Sinha
We derive Bethe's formula for the Lamb shift by extending Feynman's suggestion that the shift could be interpreted as the change, due to the presence of the atom, in electromagneti…