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arXiv quant-ph/0604034quant-ph
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原子与半无限介质相互作用的主方程方法

A master equation approach for the interaction of an atom with a dielectric semi-infinite medium

T. N. C. Mendes, C. Farina

摘要:

本文采用主方程方法计算了在介电常数为$ε(ω)$的半无限介质中原子的能级位移。特别地,我们分析了非色散介质的情况,得到了相互作用的一般表达式以及$k_0 z \ll 1$(非延迟区)和$k_0 z \gg 1$(延迟区)的渐近行为,其中$ω_0 = k_0 c$是原子的主要跃迁频率.讨论了延迟和非延迟极限的极限情况$ε\simeq 1$和$ε\gg 1$。对于延迟极限,我们计算了范德华力的非可加性贡献。

英文摘要:

We use the master equation approach to calculate the energy level shifts of an atom in the presence of a general dielectric semi-infinite medium characterized by a dielectric constant $ε(ω)$. Particularly, we analyze the case of a non-dispersive medium for which we obtain a general expression for the interaction as well as the asymptotic behaviors for $k_0 z \ll 1$ (non-retarded regime) and $k_0 z \gg 1$ (retarded regime), where $ω_0 = k_0 c$ is the main transition frequency of the atom. The limiting cases $ε\simeq 1$ and $ε\gg 1$ are discussed for both retarded and non-retarded limits. For the retarded limit, we compute the non-additivity contribution of van der Waals forces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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