论文标题
无序偶极费米气体中的超流体过渡
Superfluid transition in disordered dipolar Fermi gases
论文作者
论文摘要
我们考虑了二维几何形状中偶极颗粒（磁原子或极性分子）的弱相互作用的两个组分的费米气体。垂直于转化运动平面的偶极子的偶极 - 偶极相互作用（以及Feshbach共振的短距离相互作用）可能会提供超流体的转变。偶极 - 偶极散射幅度取决于动量，这违反了Anderson定理，声称过渡温度在存在弱混乱的情况下具有独立性。我们已经表明，该疾病可以强烈升高临界温度（在逼真的密度下最多10 nk）。这为弱相互作用的费米气体中的超流体制度的研究开辟了广泛的可能性，到目前为止尚未观察到。
We consider a weakly interacting two-component Fermi gas of dipolar particles (magnetic atoms or polar molecules) in the two-dimensional geometry. The dipole-dipole interaction (together with the short-range interaction at Feshbach resonances) for dipoles perpendicular to the plane of translational motion may provide a superfluid transition. The dipole-dipole scattering amplitude is momentum dependent, which violates the Anderson theorem claiming the independence of the transition temperature on the presence of weak disorder. We have shown that the disorder can strongly increase the critical temperature (up to 10 nK at realistic densities). This opens wide possibilities for the studies of the superfluid regime in weakly interacting Fermi gases, which was not observed so far.
