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.
Scala M., Militello B., Messina A., Vitanov N.V. (2010). Stimulated Raman adiabatic passage in an open quantum system: Master equation approach. PHYSICAL REVIEW A, 81(5), 053847 [10.1103/PhysRevA.81.053847].
Stimulated Raman adiabatic passage in an open quantum system: Master equation approach
Scala M.;Militello B.;Messina A.;
2010-01-01
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.File | Dimensione | Formato | |
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