Temperature dependence of the energy-level shift induced by the Bose-Einstein condensation of photons

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 mon...

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Published inChinese physics B Vol. 21; no. 9; pp. 113 - 119
Main Author 张建军 成泽 袁建辉 张俊佩
Format Journal Article
LanguageEnglish
Published 01.09.2012
Subjects
Absolute zero
Bose-Einstein凝聚
Condensing
Critical temperature
Hydrogen atoms
Lamb
Microcavities
Photons
Temperature dependence
Two dimensional
临界温度
光子
凝聚体
爱因斯坦
玻色
电平移位
能量
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Summary: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.
Bibliography: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.
Zhang Jian-Jun, Cheng Ze Yuan Jian-Hui, and Zhang Jun-Pei School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
11-5639/O4
Bose-Einstein condensation, energy-level shift, two-level atom
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/9/090502