2025/05/27 by Geng, Yanda, Mukherjee, Shouvik, Banik, Swarnav +6 · 1 citation
#FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Quantum Gases (cond-mat.quant-gas)
paper · doi:10.48550/arxiv.2505.21415
We describe an apparatus that efficiently produces 23Na 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.