Resonant scattering of ultracold atoms in low dimensions.
Resonant scattering of ultracold atoms in low dimensions.
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DOI：
10.1103/physrevlett.100.170404
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发表时间：
2007-06
影响因子：
8.6
通讯作者：
L. Pricoupenko
中科院分区：
文献类型：
--
作者：
L. Pricoupenko
在高部分波通道的短距离各向同性和共振相互作用下，推导了一维和二维原子波导中两个原子的低能量散射振幅。考虑到共振的有限宽度，这在以前的工作中被忽略，对约束诱导共振的性质有重要的意义。对于准一维波导中的自旋极化费米子，它对原子密度施加了很强的约束，以实现费米唐克斯吉拉多气体。对于平面波导，确定了p波和d波中二维诱导散射共振的特性是三维散射参数和波导频率的函数。
Low energy scattering amplitudes for two atoms in one- and two-dimensional atomic waveguides are derived for short range isotropic and resonant interactions in high partial wave channels. Taking into account the finite width of the resonance which was neglected in previous works is shown to have important implications in the properties of the confinement induced resonances. For spin polarized fermions in quasi-1D waveguides, it imposes a strong constraint on the atomic density for achieving the Fermi Tonks Girardeau gas. For a planar waveguide, the characteristics of the 2D induced scattering resonances in p- and d-waves are determined as a function of the 3D scattering parameters and of the waveguide frequency.