Physics – Quantum Physics
Scientific paper
2003-03-31
International Journal of Theoretical Physics. 2006. V.45. No.4. P.661-678
Physics
Quantum Physics
13 pages, LaTeX
Scientific paper
A 2-level atom with degenerate ground state interacting with a quantum field is investigated. We show, that the field drives the state of the atom to a stationary state, which is non-unique, but depends on the initial state of the system through some conserved quantities. This non-uniqueness follows from the degeneracy of the ground state of the atom, and when the ground subspace is two-dimensional, the family of stationary states will depend on a one-dimensional parameter. Only one of the stationary states in this family is a pure state, and this state coincides with the known non-coupled population trapped state (zero population in the excited level. Another one stationary state corresponds to an equal weight mixture of the excited level and of the coupled state.
Accardi Luigi
Kozyrev S. V.
No associations
LandOfFree
Coherent population trapping in the stochastic limit 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 Coherent population trapping in the stochastic limit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coherent population trapping in the stochastic limit will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-102152