Quantum-Electrodynamic Treatment of Spontaneous Emission in the Presence of an Applied Field
Phys. Rev. A 3, 1044 – Published 1 March, 1971
DOI: https://doi.org/10.1103/PhysRevA.3.1044
Abstract
Spontaneous emission by a "two-level atom" interacting with a highly excited field mode is described using quantum electrodynamics without time-dependent perturbation theory. It is found that both the line shape and the Lamb shift are affected by the "applied field." Detailed solutions are presented as a function of the population of the "applied-field mode" and as a function of the detuning.