| Quantum coherence in λ-three-level system driven by bichromatic coupling field |
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| 引用本文： | 杨丽君,赵敏,张连水,冯晓敏,李晓莉,尉长江.Quantum coherence in λ-three-level system driven by bichromatic coupling field[J].中国物理 B,2010,19(8):84204-084204. |
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| 作者姓名： | 杨丽君 赵敏 张连水 冯晓敏 李晓莉 尉长江 |
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| 作者单位： | College of Physical Science and Technology, Hebei University, Baoding 071002, China |
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| 基金项目： | Project supported by the Natural Science Foundation of Hebei Province, China (Grant No. A2009000140). |
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| 摘 要： | We present a theoretical study of quantum coherent effects in a λ-three-level system with a strong bichromatic coupling field and a weak probe field. When one component of the strong bichromatic coupling field is resonant with a corresponding transition and the other is detuning with an integer fraction of the Rabi frequency of the resonant field, the absorption spectrum exhibits a series of symmetrical doublets. While two frequencies of the strong bichromatic coupling field are symmetrically detuned from the transition, the position and the relative intensity of the absorption peak are both affected by the coupling field intensity and detuning. An explanation of the spectrum is given in term of the dressed-state formalism.
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| 收稿时间： | 2009-07-24 |
Quantum coherence inΛ-three-level system driven by bichromatic coupling field |
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| Yang Li-Jun,Zhao Min,Zhang Lian-Shui,Feng Xiao-Min,Li Xiao-Li and Wei Chang-Jiang.Quantum coherence inΛ-three-level system driven by bichromatic coupling field[J].Chinese Physics B,2010,19(8):84204-084204. |
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| Authors: | Yang Li-Jun Zhao Min Zhang Lian-Shui Feng Xiao-Min Li Xiao-Li and Wei Chang-Jiang |
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| Institution: | College of Physical Science and Technology, Hebei University, Baoding 071002, China |
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| Abstract: | We present a theoretical study of quantum coherent effects in a λ-three-level system with a strong bichromatic coupling field and a weak probe field. When one component of the strong bichromatic coupling field is resonant with a corresponding transition and the other is detuning with an integer fraction of the Rabi frequency of the resonant field, the absorption spectrum exhibits a series of symmetrical doublets. While two frequencies of the strong bichromatic coupling field are symmetrically detuned from the transition, the position and the relative intensity of the absorption peak are both affected by the coupling field intensity and detuning. An explanation of the spectrum is given in term of the dressed-state formalism. |
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| Keywords: | three-level system bichromatic coupling field dressed state quantum coherence |
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