Bose-Einstein condensation of 85Rb by direct evaporation in an optical dipole trap
Bose-Einstein condensation of 85Rb by direct evaporation in an optical dipole trap
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DOI：
10.1103/physreva.85.053647
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发表时间：
2012-05-30
影响因子：
2.9
通讯作者：
Cornish, S. L.
中科院分区：
文献类型：
--
作者：
Marchant, A. L.;Haendel, S.;Cornish, S. L.
我们报告了一种通过在交叉光学偶极子陷阱中直接蒸发来产生 Rb-85 玻色-爱因斯坦凝聚态的简单方法。捕获方案提供的捕获频率和磁偏置场的独立控制允许完全控制捕获的原子样品，从而能够轻松操纵碰撞参数以在 155 G Feshbach 共振附近实现高效蒸发。我们产生了多达 4 x 10(4) 个原子的近乎纯的凝聚体，并证明了原子相互作用的可调性质。
We report a simple method for the creation of Bose-Einstein condensates of Rb-85 by direct evaporation in a crossed optical dipole trap. The independent control of the trap frequencies and magnetic bias field afforded by the trapping scheme permits full control of the trapped atomic sample, enabling the collision parameters to be easily manipulated to achieve efficient evaporation in the vicinity of the 155 G Feshbach resonance. We produce nearly pure condensates of up to 4 x 10(4) atoms and demonstrate the tunable nature of the atomic interactions.