期刊
JOURNAL OF CHEMICAL PHYSICS
卷 120, 期 21, 页码 9984-9988出版社
AMER INST PHYSICS
DOI: 10.1063/1.1735644
关键词
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Two advantageous roles of the influence of measurement on a system subject to coherent control are exposed using a five-level model system. In particular, a continuous measurement of the population in a branch state in the Kobrak-Rice extended stimulated Raman adiabatic passage scheme is shown to provide a powerful means for controlling the population transfer branching ratio between two degenerate target states. It is demonstrated that a measurement with a large strength may be used to completely shut off the yield of one target state and that the same measurement with a weak strength can dramatically enhance the robustness of the controlled branching ratio against dephasing. (C) 2004 American Institute of Physics.
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