The population transfer in effective three-state systems driven by laser beams has been studied based on the theory of Lewis-Riesenfeld Hermitian invariants in the full- and partial-adiabatic approximations. A strict formulation of adiabatic conditions is given, and a new adiabatic condition for inducing a complete population transfer is found.
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机译:Density matrix calculation of population transfer between vibrational levels of Na2by stimulated Raman scattering with temporally shifted laser beams