一种用于高重复率产生玻色-爱因斯坦凝聚体的紧凑、可移动、基于微芯片的系统
A Compact, Transportable, Microchip-Based System for High Repetition Rate Production of Bose-Einstein Condensates
摘要：
我们提出了一个紧凑的，可运输的系统，产生玻色-爱因斯坦凝聚体（BECs）附近的集成原子微芯片的表面。该系统占地0.4 m^3，重复频率高达0.3 Hz。在阱频率为几kHz的芯片阱中进行蒸发冷却，可以得到含有1.9x10^4个87 Rb原子的近乎纯的凝聚体。在1.58（8）μK的温度下观察到部分冷凝，接近理论转变温度1.1 μK。
英文摘要：
We present a compact, transportable system that produces Bose-Einstein condensates (BECs) near the surface of an integrated atom microchip. The system occupies a volume of 0.4 m^3 and operates at a repetition rate as high as 0.3 Hz. Evaporative cooling in a chip trap with trap frequencies of several kHz leads to nearly pure condensates containing 1.9x10^4 87Rb atoms. Partial condensates are observed at a temperature of 1.58(8) μK, close to the theoretical transition temperature of 1.1 μK.
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