Dynamics of a Bose-Einstein condensate at finite temperature in an atom-optical coherence filter
Dynamics of a Bose-Einstein condensate at finite temperature in an atom-optical coherence filter
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原子光学相干滤波器中有限温度下玻色-爱因斯坦凝聚体的动力学
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
M. Inguscio
中科院分区：
文献类型：
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作者：
F. Ferlaino;P. Maddaloni;S. Burger;F. Cataliotti;C. Fort;M. Modugno;M. Inguscio
通过周期势垒的宏观相干隧穿作为原子光学滤光器，分离了87 Rb混合云的凝聚物和热组分的质心。我们在一个雪茄形磁阱的轴上叠加了一个激光驻波的组合势，并在静态热分量的存在下诱导了凝聚态偶极子振荡。由于与热分数的相互作用，振荡被抑制，我们研究了周期势在阻尼过程中所起的作用。
The macroscopic coherent tunneling through the barriers of a periodic potential is used as an atom-optical filter to separate the center of mass of the condensate and the thermal components of a 8 7 Rb mixed cloud. We condense in the combined potential of a laser standing wave superimposed on the axis of a cigar-shaped magnetic trap and induce condensate dipole oscillation in the presence of a static thermal component. The oscillation is damped due to the interaction with the thermal fraction and we investigate the role played by the periodic potential in the damping process.