AI 中文总结
研究多级原子有序链的合作光散射，通过与真空耦合产生交叉阻尼和交叉位移，在特定极限下确定激发光谱，揭示多级干涉和超辐射相互作用在碱金属原子链中可产生可测量效应。
AI 中文摘要
我们研究了具有两个平行偶极矩的准共振跃迁的多级原子有序链的合作光散射。与真空耦合引起的偶极跃迁之间的干涉产生所谓的交叉阻尼和交叉位移，这改变了非相干和相干动力学，并可在发射光的光谱特性中体现。我们确定了在偶极跃迁可用谐振子描述且散射是相干的极限下，外部激光驱动原子链时的激发光谱。我们表明，多级干涉和超辐射的相互作用可在碱金属原子链中产生可测量的效应。
英文摘要
We investigate cooperative light scattering by an ordered chain of multilevel atoms, which possess two quasi-resonant transitions with parallel dipole moments. Interference between dipole transitions induced by coupling with the vacuum gives rise to so called cross-damping and cross-shifts, that modify the incoherent and coherent dynamics and can be manifest in the spectroscopic properties of the emitted light. We determine the excitation spectrum when the atomic chain is driven by an external laser in the limit in which the dipolar transitions can be described by harmonic oscillators and the scattering is coherent. We show that the interplay of multilevel interference and superradiance can give rise to measurable effects in chains of alkali-metal atoms.
Comments11 pages, 8 figures
