New observation of Bose-Einstein condensation of 87Rb atoms in a magnetic TOP trap

摘要

We report Bose-Einstein condensation of large numbers of $+87$/Rb atoms in a magnetic time-averaged potential trap. Over 1.5 $MUL 10$+9$/ atoms, initially captured in the TOP trap, are evaporatively cooled down to temperatures near 100 nK. Condensates of up to 2 $MUL 10$+5$/ atoms at peak densities higher than 10$+14$/ cm$+$MIN@3$/ are observed.