arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.05395physics.atom-phcond-mat.quant-gasquant-ph
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一维原子链共振光散射中的集体位移

Collective shift in resonant light scattering by a one-dimensional atomic chain

Antoine Glicenstein, Giovanni Ferioli, Nikola Sibalic, Ludovic Brossard, Igor Ferrier-Barbut, Antoine Browaeys

摘要:

实验研究了一维随机填充冷二能级原子链的共振光散射。通过对光沿链散射的局域测量,我们观察到了原子间光诱导偶极-偶极相互作用的相长干涉。尽管平均原子间距离大于光的波长,但它们导致集体共振的位移。这一结果表明,强烈的集体效应可以通过结构化的几何安排的合奏。我们还探讨了高强度制度,原子不能被描述的经典。我们比较我们的测量平均场,非线性耦合偶极模型占一个原子的响应饱和。

英文摘要:

We experimentally study resonant light scattering by a one-dimensional randomly filled chain of cold two-level atoms. By a local measurement of the light scattered along the chain, we observe constructive interferences in light-induced dipole-dipole interactions between the atoms. They lead to a shift of the collective resonance despite the average interatomic distance being larger than the wavelength of the light. This result demonstrates that strong collective effects can be enhanced by structuring the geometrical arrangement of the ensemble. We also explore the high intensity regime where atoms cannot be described classically. We compare our measurement to a mean-field, nonlinear coupled-dipole model accounting for the saturation of the response of a single atom.

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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