标题： 类碱土金属原子在各向异性准一维陷阱中的约束诱导共振 显示英文标题

标题： Confinement-induced Resonance of Alkaline-earth-metal-like Atoms in Anisotropic Quasi-one-dimensional Traps

摘要： 我们研究了在具有横向各向异性的准一维管中，接近轨道费什巴赫共振的$^{173}$Yb 原子的束缚诱导共振（CIR）。通过求解两体散射问题，我们获得了不同各向异性比值和磁场下的 CIR 位置。我们的结果表明，势阱的各向异性可以作为调节 CIR 位置的额外旋钮。特别是，可以将 CIR 的位置移动到当前实验可达到的区域。我们还研究了系统的能谱，并从束缚态的角度分析了 CIR 的特性。我们发现，当轨道费什巴赫共振获得两个几乎简并的散射通道，而这些通道通常具有不同的阈值能量时，当闭道束缚态能量与其中一个阈值能量简并时会发生 CIR。 显示英文摘要

摘要： We study the confinement-induced resonance (CIR) of $^{173}$Yb atoms near an orbital Feshbach resonance in a quasi-one-dimensional tube with transversal anisotropy. By solving the two-body scattering problem, we obtain the location of CIR for various anisotropy ratio and magnetic field. Our results show that the anisotropy of the trapping potential can serve as an additional knob to tune the location of CIR. In particular, one can shift the location of CIR to the region attainable in current experiment. We also study the energy spectrum of the system and analyze the properties of CIR from the perspective of bound states. We find that as the orbital Feshbach resonance acquires two nearly degenerate scattering channels, which in general have different threshold energies, CIR takes place when the closed channel bound state energy becomes degenerate with one of the thresholds.