| Absorption Spectra of a Three-Level Atom Embedded in a PBG Reservoir |
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| 作者姓名： | 张涵 张珂 张汉壮 |
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| 作者单位： | College of Physics, Jilin University, Changchun 130023 |
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| 基金项目： | Supported by the Specialized Research Found for the Doctoral Programme of Higher Education, and the Innovative Research Foundation of Jilin University. |
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| 摘 要： | We introduce the ‘decay rate＇ terms into the density matrix equations of an atom embedded in a photonic band gap （PBG） reservoir successfully. By utilizing the master equations, the probe absorption spectra and the refractivity properties of a three-level atom in the PBG reservoir are obtained. The interaction between the atom and the PBG reservoir as well as the effects of the quantum interference on the absorption of the atom has also been taken into account. It is interesting that two different types of the anomalous dispersion relations of refractivity are exhibited in one dispersion line. The methodology used here can be applied to theoretical investigation of quantum interference effects of other atomic models embedded in a PBG reservoir.
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| 关 键 词： | 光谱 原子 存贮器 量子学 |
| 收稿时间： | 2007-1-12 |
| 修稿时间： | 2007-01-12 |
Absorption Spectra of a Three-Level Atom Embedded in a PBG Reservoir |
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| ZHANG Han,ZHANG Ke,ZHANG Han-Zhuang.Absorption Spectra of a Three-Level Atom Embedded in a PBG Reservoir[J].Chinese Physics Letters,2007,24(4):937-940. |
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| Authors: | ZHANG Han ZHANG Ke ZHANG Han-Zhuang |
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| Affiliation: | College of Physics, dilin University, Changchun 130023 |
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| Abstract: | We introduce the `decay rate' terms into the density matrix equations of an atom embedded in a photonic band gap (PBG) reservoir successfully. By utilizing the master equations, the probe absorption spectra and the refractivity properties of a three-level atom in the PBG reservoir are obtained. The interaction between the atom and the PBG reservoir as well as the effects of the quantum interference on the absorption of the atom has also been taken into account. It is interesting that two different types of the anomalous dispersion relations of refractivity are exhibited in one dispersion line. The methodology used here can be applied to theoretical investigation of quantum interference effects of other atomic models embedded in a PBG reservoir. |
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| Keywords: | 42 50 Gy 42 50 Ct 42 70 Qs |
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