论文标题
$^{161} $ dy的低场feshbach共振和三体损失
Low-field Feshbach resonances and three-body losses in a fermionic quantum gas of $^{161}$Dy
论文作者
论文摘要
我们报告了$^{161} $ dy原子的高分辨率Feshbach光谱法，在低磁场上测量了三体重组损失。对于高达1 \ g的场强度，我们确定了多达44个共振特征，并观察到损失非常低的平台。对于四个选定的典型共振，我们研究了三体重组速率系数对磁共振失调和温度的依赖性。我们观察到损失的强烈抑制，由于共振而导致的温度降低。费米子$^{161} $ dy三体损失的复杂行为的表征对于这种特殊物种在原子量子气体研究中的未来应用非常重要。
We report on high-resolution Feshbach spectroscopy on a degenerate, spin-polarized Fermi gas of $^{161}$Dy atoms, measuring three-body recombination losses at low magnetic field. For field strength up to 1\,G, we identify as much as 44 resonance features and observe plateaus of very low losses. For four selected typical resonances, we study the dependence of the three-body recombination rate coefficient on the magnetic resonance detuning and on the temperature. We observe a strong suppression of losses with decreasing temperature already for small detunings from resonance. The characterization of complex behavior of three-body losses of fermionic $^{161}$Dy is important for future applications of this peculiar species in research on atomic quantum gases.
