AI 中文总结
研究利用散斑图案实现光偶极阱轴向腰位置在38厘米转移范围内的稳定化，解决冷原子转移中束腰控制带来稳定性不足的问题，为铥原子玻色 - 爱因斯坦凝聚实验提供稳定条件。
AI 中文摘要
冷中性原子是从频率标准、传感到量子模拟等众多实验的有力工具。敏感实验常要求将冷原子从一个真空腔转移到另一个具有更好光学通道和真空条件的腔。若用聚焦可调透镜控制束腰进行转移，转移的重复性和最终位置的稳定性可能低于实验要求。本文利用散斑图案实现了光偶极阱轴向腰位置在整个38厘米转移范围内的稳定化方案，该方案提供了足够稳定性，以在传输光束和目标真空腔中另一束光形成的阱中实现约4×10^4个铥原子的玻色 - 爱因斯坦凝聚。
英文摘要
Cold neutral atoms is a powerful tool for many experiments ranging from frequency standards and sensing to quantum simulations. Sensitive experiments often demand transferring cold atoms from one vacuum chamber to the other with better optical access and vacuum. In case the transfer is done with a beam waist controlled by a focus-tunable lens, repeatability of the transfer as well as stability of the final position can be below the experimental demands. Here we implement the scheme for stabilization of the axial waist position of the optical dipole trap in the whole range of transfer (38 cm) using speckle patterns, which provides enough stability to achieve Bose-Einstein condensation of around 4*10^4 thulium atoms in the trap formed by the transport beam and the other beam in the target vacuum volume
