The recoil of atoms in arrays due to the emission or absorption of photons is studied for subwavelength interatomic spacing. The atoms in the array interact with each other through collective dipole-dipole interactions and with the incident laser field in the low-intensity limit. Shining uniform light on the array gives rise to patterns of excitation and recoil in the array. They arise due to the interference of different eigenmodes of excitation. The relation between the recoil and the decay dynamics is studied when the array is in its excitation eigenstates. The recoil experienced by a subradiant collective decay is substantially larger than that from independent atom decay. A method to calculate the rate of recoil when steady state has been achieved with a constant influx of photons is also described.

中文翻译：

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集体相互作用平面阵列中的光子诱导原子反冲

对于亚波长原子间距，研究了由于光子的发射或吸收而使阵列中的原子反冲。阵列中的原子通过集体偶极-偶极相互作用以及在低强度范围内的入射激光场彼此相互作用。将均匀的光照射到阵列上会引起阵列中的激发和反冲模式。它们是由于不同的激发本征模式的干扰而产生的。研究了阵列处于激发本征态时后坐力与衰减动力学之间的关系。次辐射集体衰变所经历的反冲比独立原子衰变所产生的反冲要大得多。还描述了一种在光子不断流入的情况下达到稳态时计算反冲速率的方法。