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arXiv 1704.08151quant-ph
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激发态范德华相互作用中的虚共振发射和振荡长程尾:QED处理及应用

Virtual Resonant Emission and Oscillatory Long-Range Tails in van der Waals Interactions of Excited States: QED Treatment and Applications

U. D. Jentschura, C. M. Adhikari, V. Debierre

摘要:

利用量子电动力学(QED)方法研究了一个基态原子与另一个处于激发态原子的相互作用。一般表达式,适用于任何原子,表示为远程尾巴,这是由于虚拟共振发射和吸收到真空模式,其频率等于过渡频率,以提供较低的躺原子状态。对于其中一个处于激发态的全同原子,我们还讨论了依赖于两原子波函数对称性的混合项(这些波函数在接近时演化为gerade态或ungerade态),并且我们在严格的QED处理中包括了所有的非共振态。为了说明这些发现,我们分析了nD-1 S氢相互作用(n= 8,10,12)的精细结构分辨范德华相互作用,发现数值系数非常大.

英文摘要:

We report on a quantum electrodynamic (QED) investigation of the interaction between a ground state atom with another atom in an excited state. General expressions, applicable to any atom, are indicated for the long-range tails which are due to virtual resonant emission and absorption into and from vacuum modes whose frequency equals the transition frequency to available lower-lying atomic states. For identical atoms, one of which is in an excited state, we also discuss the mixing term which depends on the symmetry of the two-atom wave function (these evolve into either the gerade or the ungerade state for close approach), and we include all nonresonant states in our rigorous QED treatment. In order to illustrate the findings, we analyze the fine-structure resolved van der Waals interaction for nD-1S hydrogen interactions with n=8,10,12 and find surprisingly large numerical coefficients.

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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