| Radiation Rate of a Two-Level Atom in a Spacetime with a Reflecting Boundary |
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| 作者姓名： | 陆世专 余洪伟 |
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| 作者单位： | [1]Department of Physics and Institute of Physics, Hunan Normal University, Changsha 410081 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10375023, the Program for NCET （No 04-0784）, and the Key Project of the Ministry of Education of China （No 205110）. |
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| 摘 要： | We study a two-level atom in interaction with a real massless scalar quantum field in a spacetime with a reflecting boundary. We calculate the rate of change of the atomic energy for the atom. The presence of the boundary modifies the quantum fluctuations of the scalar field, which in turn modifies the rate of change of the atomic energy. It is found that the modifications induced by the presence of a boundary make the spontaneous radiation rate of an excited atom to oscillate near the boundary and this oscillatory behaviour may offer a possible opportunity for experimental tests for geometrical （boundary） effects in flat spacetime.
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| 关 键 词： | 原子物理学 反射边界 量子场 原子能量 |
| 收稿时间： | 2005-06-09 |
| 修稿时间： | 2005-06-09 |
Radiation Rate of a Two-Level Atom in a Spacetime with a Reflecting Boundary |
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| Liu ShiZhuan;Yu HongWei.Radiation Rate of a Two-Level Atom in a Spacetime with a Reflecting Boundary[J].Chinese Physics Letters,2005,22(10):2481-2484. |
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| Authors: | Liu ShiZhuan;Yu HongWei |
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