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arXiv · 2603.17119

From MOT to BEC using a single crossed-wire pair

Joshua M. Wilson·James A. Stickney·Francisco Fonta·Johnathan White·Brian Kasch·Spencer E. Olson·Matthew B. Squires
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Abstract

We demonstrate a new magneto-optical trap (MOT) configuration using a simple pair of crossed wires rotated at 45 deg and an appropriate bias field to generate a MOT of >10^8 atoms. The same pair of wires, with slightly adjusted control parameters, is then used to magnetically trap the atoms and cool them via forced evaporative cooling into a Bose-Einstein condensate (BEC) with >10^4 atoms. We present the theoretical framework for generating a quadrupole field using a pair of crossed wires with arbitrary rotation angle, along with the atom chip design and fabrication. Finally, we describe the experimental protocols required for BEC production using only a single crossed-wire atom chip.

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Joshua M. Wilson, James A. Stickney, Francisco Fonta, Johnathan White, Brian Kasch, Spencer E. Olson, Matthew B. Squires. 2026-03-17. From MOT to BEC using a single crossed-wire pair. https://arxiv.org/abs/2603.17119

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