Here we report of a design and the performance of an optimized micro-fabricated conveyor belt for precise and adiabatic transportation of cold atoms. A theoretical model is presented to determine optimal currents in conductors used for the transportation. We experimentally demonstrate a fast adiabatic transportation of Rubidium (87Rb) cold atoms with minimal loss and heating with as few as three conveyor belt conductors. This novel design of a multilayered conveyor belt structure is fabricated in aluminium nitride (AlN) because of its outstanding thermal and electrical properties. This demonstration would pave a way for a compact and portable quantum device required for quantum information processing and sensors, where precise positioning of cold atoms is desirable.
@article{arxiv.1704.03030,
title = {A minimalistic and optimized conveyor belt for neutral atoms},
author = {Ritayan Roy and Paul C. Condylis and Vindhiya Prakash and Daniel Sahagun and Björn Hessmo},
journal= {arXiv preprint arXiv:1704.03030},
year = {2018}
}