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Accelerated Multi-Level Atoms in an Electromagnetic Vacuum and Fulling--Davies--Unruh Effect |
| ZHU Zhi-Ying;YU Hong-Wei |
| Department of Physics and Institute of Physics, Hunan Normal University, Changsha 410081 |
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| Cite this article: |
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ZHU Zhi-Ying, YU Hong-Wei 2008 Chin. Phys. Lett. 25 1575-1578 |
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Abstract We consider, from the point of view of a coaccelerated frame, a uniformly accelerated multi-level atom in interaction with vacuum quantum electromagnetic fields in the multi-polar coupling scheme, and calculate the rate of change of the atom's energy assuming a thermal bath at a finite temperature T in the Rindler wedge. Comparison with the spontaneous excitation rate of the atom calculated in the instantaneous inertial frame of the atom shows that both the inertial and coaccelerated observer would
agree with each other only when the temperature of the thermal bath equals the FDU value TFDU=a/2π.
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| Keywords:
04.62.+v
03.70.+k
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Received: 16 January 2008
Published: 29 April 2008
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| PACS: |
04.62.+v
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(Quantum fields in curved spacetime)
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03.70.+k
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(Theory of quantized fields)
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