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Coherent Population Transfer in a Three-Level System Driven by Unmatched Gaussian Pulses
Hong Guo,Dingan Han,Hong Jin Kong,Hui Sun,Xuzong Chen,Yanfeng Bai 한국물리학회 2004 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.45 No.2
The population transfer in a three-level system driven by unmatched Gaussian pulses is investigated. A set of time-dependent density matrix equations is solved numerically using the rotating wave approximation, and the solution shows that the population of the atomic level depends strongly on the pulse widths of the applied probe and coupling pulses. If the parameters are chosen appropriately, population can be transferred almost completely to the target state, which interacts with the pulse with the smaller pulse width.