Radiative Corrections in Laser-Dressed Atoms: Formalism and Applications
Abstract
The dressing of atomic states in a strong laser field modifies the structure of the incoherently scattered fraction of the laser intensity, which is described to a good approximation by the Mollow spectrum. The incoherent spectrum is generated by the fluctuations of the atomic dipole moment about its expectation value, and the positions of the peaks are approximately given by the energy differences between the dressed atomic energy levels. In this paper, we investigate radiative corrections received by the dressed states. Our calculations are motivated by the quest to understand in detail the interplay of a bound electron dressed by the highly populated laser mode and its interaction with the vacuum modes. Alternatively, this may be seen as an electron experiencing modified stimulated and spontaneous radiative corrections in a vacuum tailored by the laser field. We obtain dressed self-energy shifts that depend on the Rabi flopping frequency (and in turn on the laser intensity) and on the detuning of the laser field relative to the atomic resonance frequency. We find that the dressed radiative corrections differ in a nontrivial manner from the radiative shifts of the 'bare' atomic states.
Recommended Citation
U. D. Jentschura and C. H. Keitel, "Radiative Corrections in Laser-Dressed Atoms: Formalism and Applications," Annals of Physics, vol. 310, no. 1, pp. 1 - 55, Elsevier, Mar 2004.
The definitive version is available at https://doi.org/10.1016/S0003-4916(03)00132-5
Department(s)
Physics
Keywords and Phrases
Calculations And Mathematical Techniques In Atomic And Molecular Physics; Quantum Electrodynamics-specific Calculations; Relativistic And Quantum Electrodynamic Effects In Atoms And Molecules
International Standard Serial Number (ISSN)
0003-4916
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2004 Elsevier, All rights reserved.
Publication Date
01 Mar 2004
