Adiabatic loading of a Bose-Einstein condensate in a 3D optical lattice
Adiabatic loading of a Bose-Einstein condensate in a 3D optical lattice
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DOI：
10.1080/09500340600777730
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发表时间：
2007-03-20
影响因子：
1.3
通讯作者：
Bloch, I.
中科院分区：
文献类型：
--
作者：
Gericke, T.;Gerbier, F.;Bloch, I.
我们通过实验研究了玻色-爱因斯坦凝聚体绝热加载到光学晶格势中的情况。斜坡期间激发的产生是通过云自由膨胀后观察到的干涉图案的可见度相应降低来检测的。我们关注超流体状态，其中我们表明极限时间尺度与单粒子隧道效应原子在晶格上的重新分布有关。
We experimentally investigate the adiabatic loading of a Bose-Einstein condensate into an optical lattice potential. The generation of excitations during the ramp is detected by a corresponding decrease in the visibility of the interference pattern observed after free expansion of the cloud. We focus on the superfluid regime, where we show that the limiting time scale is related to the redistribution of atoms across the lattice by single-particle tunnelling.