Overview
This article presents a unified structural interpretation of two cornerstone predictions of quantum electrodynamics: the Lamb shift in atomic systems and electron-positron pair production in ultra-strong electric fields. These phenomena are among the most precisely tested effects in modern physics.
Rather than attributing them to fluctuations of a physically populated vacuum, the analysis interprets both effects as consequences of intrinsic limitations of effective description: finite spectral resolution in localized states and bounded transport capacity under extreme fields. The approach is explicitly effective and does not introduce new dynamical laws or particles.
Core contributions
- Unified interpretation: Lamb and Schwinger effects arise from the same projective limitations.
- Lamb shift as finite resolution: spectral corrections interpreted as projective spectral noise.
- Schwinger effect as saturation: pair production as flux saturation and structural reconfiguration.
- No dynamical vacuum: vacuum-related effects reinterpreted without physical vacuum excitations.
- Invariant control parameter: the fine-structure constant governs both regimes.
Consistency with established physics
The interpretation preserves all quantitative predictions of quantum electrodynamics. Renormalized couplings, field equations, and experimentally tested results remain unchanged. No deviations are introduced in currently accessible regimes.
Renormalization is reinterpreted as an effective procedure compensating for unresolved spectral structure, rather than as a correction to a physically populated vacuum.
Relation to the broader research program
This article is self-contained and can be read independently. It complements related analyses of non-injective projection, bounded effective dynamics, and saturation phenomena, but does not rely on them for internal consistency.
References
Jérôme Beau. The Lamb Shift and the Schwinger Effect as Projective Resolution and Flux Saturation. Preprint, Zenodo. 10.5281/zenodo.18602702