Atom recoil during coherent light scattering from many atoms
Atom recoil during coherent light scattering from many atoms
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DOI：
10.1103/physreva.99.013410
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发表时间：
2019-01
影响因子：
2.9
通讯作者：
F. Robicheaux;Shi-hua Huang
中科院分区：
文献类型：
--
作者：
F. Robicheaux;Shi-hua Huang
研究了超冷原子的反冲动量和反冲能量，其中光子的集体散射或发射是重要的。由于偶极-偶极相互作用的影响被强调。对于两个或多个原子被限制在光阱中，计算了原子分离时的能量和动量。当原子间距与跃迁波长相当或大于跃迁波长时，超冷原子的反冲能量主要取决于集体自发衰变，而不是来自合作频移的力。对从原子阵列反射的激光脉冲的计算表明，原子的反冲能可以比从独立原子图像中预期的大得多。
The recoil momentum and energy of ultracold atoms is studied for situations where collective scattering or emission of photons is important. Effects due to the dipole-dipole interaction are emphasized. For two and many atoms confined in optical traps, calculations of the energy and momentum with respect to atomic separation are performed. When the atomic separation is comparable to or larger than the transition wavelength, the ultracold atoms’ recoil energy depends mainly on collective spontaneous decay rather than forces from the cooperative frequency shift. Calculations for a laser pulse reflecting from an atomic array suggest that the recoil energy of atoms can be substantially larger than might be expected from an independent atom picture.