Sawtooth-wave adiabatic-passage slowing of dysprosium
Sawtooth-wave adiabatic-passage slowing of dysprosium
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DOI：
10.1103/physreva.99.063414
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发表时间：
2018-09
影响因子：
2.9
通讯作者：
N. Petersen;Florian Muhlbauer;L. Bougas;Arijit Sharma;D. Budker;P. Windpassinger
中科院分区：
文献类型：
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作者：
N. Petersen;Florian Muhlbauer;L. Bougas;Arijit Sharma;D. Budker;P. Windpassinger
利用626 nm处136 kHz宽的跃迁，研究了玻色子和费米子镝同位素的长波绝热通过（SWAP）慢化。一束预冷的原子被SWAP力在一维中进一步减速，并测量了接近零速度的原子量。我们证明，SWAP减慢的速度可以是在相同转变下操作的传统光学糖蜜的两倍。此外，我们调查的参数范围内的SWAP力是有效地使用在我们的设置，并与绝热条件的结果。此外，我们增加了超精细的基态人口的费米镝在减速过程中的损失，并观察到更强大的减速与SWAP相比，减速与辐射压力。
We report on sawtooth wave adiabatic passage (SWAP) slowing of bosonic and fermionic dysprosium isotopes by using a 136 kHz wide transition at 626 nm. A beam of precooled atoms is further decelerated in one dimension by the SWAP force and the amount of atoms at near zero velocity is measured. We demonstrate that the SWAP slowing can be twice as fast as in a conventional optical molasses operated on the same transition. In addition, we investigate the parameter range for which the SWAP force is efficiently usable in our set-up, and relate the results to the adiabaticity condition. Furthermore, we add losses to the hyperfine ground-state population of fermionic dysprosium during deceleration and observe more robust slowing with SWAP compared to slowing with the radiation pressure force.