Please use this identifier to cite or link to this item:
https://repositorio.ufba.br/handle/ri/5940
metadata.dc.type: | Artigo de Periódico |
Title: | Thermal effects on the stability of excited atoms in cavities |
Other Titles: | Physical Review A |
Authors: | Khanna, Faqir C. Malbouisson, A. P. C. Malbouisson, J. M. C. Santana, Ademir Eugênio de |
metadata.dc.creator: | Khanna, Faqir C. Malbouisson, A. P. C. Malbouisson, J. M. C. Santana, Ademir Eugênio de |
Abstract: | An atom, coupled linearly to an environment, is considered in a harmonic approximation in thermal equilibrium inside a cavity. The environment is modeled by an infinite set of harmonic oscillators. We employ the notion of dressed states to investigate the time evolution of the atom initially in the first excited level. In a very large cavity (free space) for a long elapsed time, the atom decays and the value of its occupation number is the physically expected one at a given temperature. For a small cavity the excited atom never completely decays and the stability rate depends on temperature. |
Publisher: | The American Physical Society |
URI: | http://www.repositorio.ufba.br/ri/handle/ri/5940 |
Issue Date: | 2010 |
Appears in Collections: | Artigo Publicado em Periódico (FIS) |
Files in This Item:
File | Description | Size | Format | |
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(34)e032119.pdf | 286,58 kB | Adobe PDF | View/Open |
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