We discuss theoretically the optical binding of one-dimensional chains of cold atoms shone by a transverse pump, where particles self-organize to a distance close to an optical wavelength. As the number of particles is increased, the trapping potential increases logarithmically as the contributions from all atoms add up constructively. We identify a cooperative cooling mechanism, due to the mutual exchange of photons between atoms, which can beat the spontaneous emission for chains that are long enough. Surprisingly, the cooling is optimal very close to the resonance. This peculiar cooling mechanism thus gives new insights into the cooperative physics of low-dimensional cold atom systems.

中文翻译：

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一维光学结合的冷原子链中的协作冷却

我们从理论上讨论横向泵浦发出的冷原子的一维链的光学结合，其中粒子自组织至接近光学波长的距离。随着粒子数量的增加，由于所有原子的贡献以建设性的方式相加，俘获势也将呈对数增长。由于原子之间光子的相互交换，我们确定了一种协作冷却机制，可以击败足够长的链的自发发射。出人意料的是，冷却非常接近共振是最佳的。因此，这种独特的冷却机制为低维冷原子系统的合作物理学提供了新的见解。