标题： 钠玻色-爱因斯坦凝聚体在混合陷阱中的高效产生 显示英文标题

标题： Efficient production of sodium Bose-Einstein condensates in a hybrid trap

摘要： 我们描述了一种装置，该装置能够高效地在结合了四极磁场和远失谐光学偶极陷阱的混合陷阱中产生$^{23}$钠玻色爱因斯坦凝聚体（BEC）。通过贝叶斯优化框架，我们系统地优化了所有BEC生产参数，在高度相关的参数小批量中进行。此外，我们引入了一种基于拉格朗日乘子的技术来优化不同蒸发阶段的持续时间，同时限制总持续时间固定；这使得逐步创建出越来越快的实验序列成为可能，这些序列仍然能生成高质量的BEC。综上所述，我们的技术构成了一个改进和加速基于序列的实验协议的一般方法。 显示英文摘要

摘要： We describe an apparatus that efficiently produces $^{23}$Na Bose-Einstein condensates (BECs) in a hybrid trap that combines a quadrupole magnetic field with a far-detuned optical dipole trap. Using a Bayesian optimization framework, we systematically optimize all BEC production parameters in modest sized batches of highly correlated parameters. Furthermore, we introduce a Lagrange multiplier-based technique to optimize the duration of different evaporation stages constrained to have a fixed total duration; this enables the progressive creation of increasingly rapid experimental sequences that still generate high quality BECs. Taken together, our techniques constitute a general approach for refining and accelerating sequence-based experimental protocols.