A unitary transformation approach is used to study the energy level shift of the atom coupled to both a vacuum electromagnetic field and a driving laser. The Lamb shift of the energy levels is shown to depend on the Rabi frequency and the detuning of the driving laser, which couples another pair of levels.
|Physical Review A - Atomic, Molecular, and Optical Physics
|Published - 3 May 2010
Scopus Subject Areas
- Atomic and Molecular Physics, and Optics