Many-body interactions in a sample of ultracold Rydberg atoms with varying dimensions and densities

被引:32
作者
Carroll, TJ [1 ]
Sunder, S [1 ]
Noel, MW [1 ]
机构
[1] Bryn Mawr Coll, Dept Phys, Bryn Mawr, PA 19010 USA
来源
PHYSICAL REVIEW A | 2006年 / 73卷 / 03期
关键词
D O I
10.1103/PhysRevA.73.032725
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Ultracold highly excited atoms in a magneto-optical trap (MOT) are strongly coupled by the dipole-dipole interaction. We have investigated the importance of many-body effects by controlling the dimensionality and density of the excited sample. We excited three different cylindrical volumes of atoms in the MOT to Rydberg states. At small radius, where the sample is nearly one-dimensional, many-body interactions are suppressed. At larger radii, the sample becomes three-dimensional and many-body effects are apparent.
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页数:5
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