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Spontaneous Emission of an Atom in a Spacetime with Two Parallel Reflecting Boundaries |
| HUANG Tie-Tie1,2,3, ZHU Zhi-Ying1,2, ZHU Yun-Feng1,2, YU Hong-Wei 1,2 |
| 1Department of Physics and Institute of Physics, Hunan Normal University, Changsha 4100812Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University, Changsha 4100813Department of Physics, Xiangnan University, Chenzhou 423000 |
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HUANG Tie-Tie, ZHU Zhi-Ying, ZHU Yun-Feng et al 2009 Chin. Phys. Lett. 26 040402 |
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Abstract We consider an inertial two-level atom in interaction with a real massless scalar quantum field in a spacetime between two parallel reflecting plane boundaries, and calculate the contributions of vacuum fluctuations and radiation reaction to the rate of change of the atomic energy. Our results show that there exists a regime of the separation L between the two boundaries such that the excited atom's spontaneous emission is impossible. There also exist certain values of the atom's position such that the corrections due to the presence of boundaries balance each other, so that the atom's spontaneous emission rate is the same as if there were no boundaries at all.
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04.62.+v
42.50.Ct
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Received: 29 December 2008
Published: 25 March 2009
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| PACS: |
04.62.+v
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(Quantum fields in curved spacetime)
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42.50.Ct
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(Quantum description of interaction of light and matter; related experiments)
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