摘要

We present a compact, transportable system that produces Bose-Einstein condensates near the surface of an integrated atom microchip. The system occupies a volume of 0.4 m(3), operates at a repetition rate as high as 0.3 Hz, and consumes an average power of 525 W. Evaporative cooling in a chip trap with trap frequencies of several kilohertz leads to nearly pure condensates containing 1.9x10(4) (87)Rb atoms. Partial condensates are observed at a temperature of 1.58(8) mu K, close to the theoretical transition temperature of 1.1 mu K.

  • 出版日期2010-3-1