Loss of cold atoms due to collisions with residual gases in free flight and in a magneto-optical trap*

Project supported by the Ministry of Science and Technology of China (Grant No. 2013YQ09094304).

Xiang Jing-feng1, 2, Cheng He-nan1, 2, Peng Xiang-kai1, 2, Wang Xin-wen1, 2, Ren Wei1, Ji Jing-wei1, Liu Kang-kang1, Zhao Jian-bo1, Li Lin1, Qu Qiu-zhi1, Li Tang1, Wang Bin1, Ye Mei-feng1, Zhao Xin1, Yao Yuan-yuan1, Lü De-Sheng1, †, Liu Liang1, ‡
       

(color online) MOT loss rate versus its loading rate. Red points show the experimentally measured values, and the black line is the fitting line for the experimentally measured values.