Environmental effects on the Lamb shift according to stochastic electrodynamics

Abstract
The radiative energy shifts produced by environmental modifications of the electromagnetic vacuum are studied from the point of view of stochastic electrodynamics. The vacuum can be modified by the addition of external radiation or by the introduction of conducting objects that alter the distribution of modes. The general formulas obtained are applied to some simple but representative situations. The present results are shown to coincide with previous quantum calculations, and some conceptual differences between the two approaches are discussed.

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