| Temperature dependence of the energy-level shift induced by the Bose—Einstein condensation of photons |
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| 引用本文： | 张建军,成泽,袁建辉,张俊佩.Temperature dependence of the energy-level shift induced by the Bose—Einstein condensation of photons[J].中国物理 B,2012,21(9):90502-090502. |
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| 作者姓名： | 张建军 成泽 袁建辉 张俊佩 |
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| 作者单位： | School of Physics, Huazhong University of Science and Technology |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （Grant Nos. 10174024 and 10474025）. |
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| 摘 要： | We investigate the energy-level shift of a hydrogen atom in a two-dimensional optical microcavity, where there exists a Bose-Einstein condensation of photons. It is found that below the critical temperature T c , the energy-level shift of the bound electron is dependent on temperature, and it is a monotonically increasing function of the absolute temperature T . Especially, at the absolute zero temperature, the energy-level shift entirely comes from the Lamb shift, and the atom can be treated approximately, that is, in vacuum.
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| 关 键 词： | Bose-Einstein condensation energy-level shift two-level atom |
| 收稿时间： | 2012-01-06 |
Temperature dependence of the energy-level shift induced by the Bose-Einstein condensation of photons |
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| Zhang Jian-Jun,Cheng Ze,Yuan Jian-Hui,Zhang Jun-Pei.Temperature dependence of the energy-level shift induced by the Bose-Einstein condensation of photons[J].Chinese Physics B,2012,21(9):90502-090502. |
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| Authors: | Zhang Jian-Jun Cheng Ze Yuan Jian-Hui Zhang Jun-Pei |
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| Institution: | School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | We investigate the energy-level shift of a hydrogen atom in a two-dimensional optical microcavity, where there exists a Bose-Einstein condensation of photons. It is found that below the critical temperature Tc, the energy-level shift of the bound electron is dependent on temperature, and it is a monotonically increasing function of the absolute temperature T. Especially, at the absolute zero temperature, the energy-level shift entirely comes from the Lamb shift, and the atom can be treated approximately, that is, in vacuum. |
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| Keywords: | Bose-Einstein condensation energy-level shift two-level atom |
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