| Six-Fold Degenerate Dark States in a Four-Level Atomic System |
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| 作者姓名： | 吴金辉 崔淬砺 巴诺 马启荣 国秀珍 |
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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 National Natural Science Foundation of China under Grant Nos 10334010 and 10404009. |
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| 摘 要： |
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| 关 键 词： | 原子系统 褶皱黑暗状态 频率 衰变率 |
| 收稿时间： | 2006-11-22 |
| 修稿时间： | 2006-11-22 |
Six-Fold Degenerate Dark States in a Four-Level Atomic System |
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| WU Jin-Hui,CUI Cui-Li,BA Nuo,MA Qi-Rong,GUO Xiu-Zhen.Six-Fold Degenerate Dark States in a Four-Level Atomic System[J].Chinese Physics Letters,2007,24(2):428-431. |
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| Authors: | WU Jin-Hui CUI Cui-Li BA Nuo MA Qi-Rong GUO Xiu-Zhen |
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| Institution: | College of Physics, Jilin University, Changchun 130023 |
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| Abstract: | With all driving fields on Raman resonance, a tripod-type atomic system quickly evolves into a dark state decoupled from the lossy excited level. The dark state depends strongly on field Rabi frequencies, spontaneous decay rates, and the initial atomic population in a complicated way. Analytical results reveal that it is a sixfold degenerate dark state with its three components superposed both coherently and incoherently due to population redistribution from spontaneous emission. |
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| Keywords: | 42 50 Gy 42 50 Hz |
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