Collective Many-Body Interaction in Rydberg Dressed Atoms
Collective Many-Body Interaction in Rydberg Dressed Atoms
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DOI：
10.1103/physrevlett.105.160404
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发表时间：
2010-10-15
影响因子：
8.6
通讯作者：
Buechler, Hans Peter
中科院分区：
文献类型：
--
作者：
Honer, Jens;Weimer, Hendrik;Buechler, Hans Peter
本文提出了一种用里德伯能级弱修饰原子基态来控制冷原子气体间相互作用势的形状和性质的方法。对于增加的粒子密度，交叉发生从两个粒子的相互作用到集体的多体相互作用，其中的偶极-偶极或货车德瓦尔斯阻塞现象之间的里德堡水平起着主导作用。我们研究了这些集体相互作用势对玻色-爱因斯坦凝聚的影响，并给出了实验检测的最佳参数。
We present a method to control the shape and character of the interaction potential between cold atomic gases by weakly dressing the atomic ground state with a Rydberg level. For increasing particle densities, a crossover takes place from a two-particle interaction into a collective many-body interaction, where the dipole-dipole or van der Waals blockade phenomenon between the Rydberg levels plays a dominant role. We study the influence of these collective interaction potentials on a Bose-Einstein condensate and present the optimal parameters for its experimental detection.