Atomic scattering in the presence of an external confinement and a gas of impenetrable bosons

被引:1600
作者
Olshanii, M [1 ]
机构
[1] Harvard Univ, Lyman Lab Phys, Cambridge, MA 02138 USA
[2] Ecole Normale Super, Lab Kastler Brossel, F-75231 Paris 05, France
关键词
D O I
10.1103/PhysRevLett.81.938
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We calculate, within the pseudopotential approximation, a one-dimensional scattering amplitude and effective one-dimensional interaction potential for atoms confined transversally by an atom waveguide or highly elongated "cigar"-shaped atomic trap. We show that, in the low-energy scattering regime, the scattering process degenerates to a total reflection, suggesting an experimental realization of a famous model in theoretical physics-a one-dimensional gas of impenetrable bosons ("Tonks" gas). We give an estimate fur suitable Experimental parameters for alkali atoms confined in waveguides.
引用
收藏
页码:938 / 941
页数:4
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