Physics – Quantum Physics
Scientific paper
2005-12-18
Physics
Quantum Physics
13 pages, 6 figures
Scientific paper
10.1016/j.physleta.2006.02.018
We consider three two-level atoms inside a one-dimensional cavity, interacting with the electromagnetic field in the rotating wave approximation (RWA), commonly used in the atom-radiation interaction. One of the three atoms is initially excited, and the other two are in their ground state. We numerically calculate the propagation of the field spontaneously emitted by the excited atom and scattered by the second atom, as well as the excitation probability of the second and third atom. The results obtained are analyzed from the point of view of relativistic causality in the atom-field interaction. We show that, when the RWA is used, relativistic causality is obtained only if the integrations over the field frequencies are extended to $-\infty$; on the contrary, noncausal tails remain even if the number of field modes is increased. This clearly shows the limit of the RWA in dealing with subtle problems such as relativistic causality in the atom-field interaction.
Dolce I.
Passante Roberto
Persico F.
No associations
LandOfFree
The limits of the rotating wave approximation in the electromagnetic field propagation in a cavity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The limits of the rotating wave approximation in the electromagnetic field propagation in a cavity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The limits of the rotating wave approximation in the electromagnetic field propagation in a cavity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-133543