TY - JOUR
AU1 - Fazal, Rehman
AU2 - Li, Jia-Zhen
AU3 - Chen, Zhi-Wen
AU4 - Qin, Yuan
AU5 - Lin, Ya-Yi
AU6 - Zhang, Zuan-Xian
AU7 - Zhang, Shan-Chao
AU8 - Huang, Wei
AU9 - Yan, Hui
AU1 - Zhu, Shi-Liang
AB - A Bose–Einstein condensate with a large atom number is an important experimental platform for quantum simulation and quantum information research. An optical dipole trap is the a conventional way to hold the ultracold atoms, where an atomic cloud is evaporatively cooled down before reaching the Bose–Einstein condensate. A carefully designed trap depth controlling curve is typically required to realize the optimal evaporation cooling. We present and demonstrate a simple way to optimize the evaporation cooling in a crossed optical dipole trap. A polyline shape optical power control profile is easily obtained with our method, by which a pure Bose–Einstein condensate with atom number 1.73 × 105 is produced. Theoretically, we numerically simulate the optimal evaporation cooling using the parameters of our apparatus based on a kinetic theory. Compared to the simulation results, our evaporation cooling shows a good performance. We believe that our simple method can be used to quickly realize evaporation cooling in optical dipole traps.
TI - Production of 87Rb Bose–Einstein Condensate with a Simple Evaporative Cooling MethodSupported by the National Key Research and Development Program of ...
JF - Chinese Physics Letters
DO - 10.1088/0256-307X/37/3/036701
DA - 2020-03-01
UR - https://www.deepdyve.com/lp/iop-publishing/production-of-87rb-bose-einstein-condensate-with-a-simple-evaporative-MuBDQtEWIx
SP - 036701
VL - 37
IS - 3
DP - DeepDyve
ER -