论文标题
单一组件费米气体中的异常损失行为接近$ p $ - 波富什巴赫共振
Anomalous loss behavior in a single-component Fermi gas close to a $p$-Wave Feshbach resonance
论文作者
论文摘要
从理论上讲，我们在相互作用的，非单身政权中的单个组成部分的费米气体中的三体损失相邻。我们扩展了Waseem \ textit {et al。}引入的级联模型[M. Waseem，J。Yoshida，T。Saito和T. Mukaiyama，物理。修订版A \ textbf {99}，052704（2019）]描述了弹性和非弹性碰撞过程。我们发现，损失行为表现出$ n^3 $和异常的$ n^2 $密度依赖性，其比率分别更大和小于1。能量分布的相应演变表明碰撞冷却或向低能性非热稳态态的演变。这些发现与理解原子损失和在其基态处的超速气体的能量演化特别相关。
We theoretically investigate three-body losses in a single-component Fermi gas near a $p$-wave Feshbach resonance in the interacting, non-unitary regime. We extend the cascade model introduced by Waseem \textit{et al.} [M. Waseem, J. Yoshida, T. Saito, and T. Mukaiyama, Phys. Rev. A \textbf{99}, 052704 (2019)] to describe the elastic and inelastic collision processes. We find that the loss behavior exhibits a $n^3$ and an anomalous $n^2$ density dependence for a ratio of elastic-to-inelastic collision rate larger and smaller than 1, respectively. The corresponding evolutions of the energy distribution show collisional cooling or evolution toward low-energetic non-thermalized steady states, respectively. These findings are particularly relevant for understanding atom loss and energetic evolution of ultracold gases of fermionic lithium atoms in their ground state.
