Stimulated Raman adiabatic passage in an open quantum system: Master equation approach

Details Stimulated Raman adiabatic passage in an open quantum system: Master equation approach Stimulated Raman adiabatic passage in an open quantum system: Master equation approach

2010-03-18

arxiv.org/abs/1003.3616v1

Phys. Rev. A 81, 053847 (2010)

Physics

Quantum Physics

11 pages, 4 figures

Scientific paper

10.1103/PhysRevA.81.053847

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 [N. V. Vitanov and S. Stenholm, Phys. Rev. A {\bf 56}, 1463 (1997)] shows that in the weak coupling limit the two treatments lead to essentially the same results. Instead, 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.

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