Atom chip based fast production of Bose-Einstein condensate
Atom chip based fast production of Bose-Einstein condensate
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DOI：
10.1007/s00340-005-2083-z
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发表时间：
2006-03-01
影响因子：
2.1
通讯作者：
Nakagawa, K
中科院分区：
文献类型：
--
作者：
Horikoshi, M;Nakagawa, K
我们开发了一种在原子芯片上快速有效地产生玻色-爱因斯坦凝聚体（BEC）的简单方法。采用标准的六束磁光阱和光诱导原子解吸加载，在1 s内收集到3 × 10（7）个Rb-87原子，并高效地加载到芯片的小体积磁势中。利用这种方法，在3 s的总时间内实现了3 × 10（3）个原子的BEC。我们可以通过减少三体碰撞来实现高达2x 10（4）个原子的凝聚。本系统可作为原子干涉仪的快速、高通量相干物质波源。
We have developed a simple method for the fast and efficient production of a Bose-Einstein condensate (BEC) on an atom chip. By using a standard six-beam magneto-optical trap and light-induced atom desorption for loading, 3x10(7) Rb-87 atoms are collected within 1 s and loaded into a small-volume magnetic potential of the chip with high efficiency. With this method, a BEC of 3x10(3) atoms is realized within a total time of 3 s. We can realize a condensate of up to 2x10(4) atoms by reducing three-body collisions. The present system can be used as a fast and high-flux coherent matter-wave source for an atom interferometer.