磁囚禁铬原子在超冷气体中的偶极弛豫
Dipolar Relaxation in an ultra-cold Gas of magnetically trapped chromium atoms
摘要：
我们从理论和实验两方面研究了磁囚禁铬原子气体中的偶极弛豫。我们已经发现，6 $μ_B$的大磁矩的结果，在一个磁场为44 G的偶极弛豫过程的事件速率系数高达$3.2\cdot10^{-11}$ cm $^{3}$ s $^{-1}$。我们提出了一个基于纯偶极耦合的理论模型，该模型预测的偶极弛豫速率与我们的实验观察一致。这种非常普遍的方法可以应用于各种各样的偶极气体。
英文摘要：
We have investigated both theoretically and experimentally dipolar relaxation in a gas of magnetically trapped chromium atoms. We have found that the large magnetic moment of 6 $μ_B$ results in an event rate coefficient for dipolar relaxation processes of up to $3.2\cdot10^{-11}$ cm$^{3}$s$^{-1}$ at a magnetic field of 44 G. We present a theoretical model based on pure dipolar coupling, which predicts dipolar relaxation rates in agreement with our experimental observations. This very general approach can be applied to a large variety of dipolar gases.
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