Stimulated Raman adiabatic passage in an open quantum system: Master equation approach
- Authors: Scala M.; Militello B.; Messina A.; Vitanov N.V.
- Publication year: 2010
- Type: Articolo in rivista (Articolo in rivista)
- OA Link: http://hdl.handle.net/10447/392041
Abstract
A master equation approach to the study of environmental effects in the adiabatic population transfer in three-state systems is presented. A systematic comparison with the non-Hermitian Hamiltonian approach shows that, in the weak-coupling limit, the two treatments lead to essentially the same results. In contrast, in the strong-damping limit the predictions are quite different: In particular, the counterintuitive sequences in the STIRAP scheme turn out to be much more efficient than expected before. This point is explained in terms of quantum Zeno dynamics.