We consider the Casimir-Polder interaction between two atoms, one in the ground state and the other in its excited state. The interaction is time dependent for this system, because of the dynamical self-dressing and the spontaneous decay of the excited atom. We calculate the dynamical Casimir-Polder potential between the twoatoms using an effective Hamiltonian approach. The results obtained and their physical meaning are discussed and compared with previous results based on a time-independent approach, which uses a nonnormalizable dressed state for the excited atom.
|Numero di pagine||5|
|Rivista||PHYSICAL REVIEW A|
|Stato di pubblicazione||Published - 2004|
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics