Multi-loop and Multi-axis Atomtronic Sagnac Interferometry

Saurabh Pandey; Ceren Uzun; Katarzyna A. Krzyzanowska; Malcolm G. Boshier

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arXiv · 2504.20345

Multi-loop and Multi-axis Atomtronic Sagnac Interferometry

Saurabh Pandey·Ceren Uzun·Katarzyna A. Krzyzanowska·Malcolm G. Boshier

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Abstract

We report the experimental realization of a large-area and multi-axis atomtronic interferometer in an optical waveguide for rotation sensing. A large enclosed area is achieved through multi-loop operation in a guided atom interferometer using Bose-Einstein condensates. We demonstrate a three-loop interferometer with a total interrogation time of ~ 0.4 s and an enclosed area of 8.7 mm$^2$- the largest reported in a fully guided or one-dimensional setup. High-contrast interference fringes are observed for up to five Sagnac orbits in a smaller loop-area configuration. Our approach enables interleaved rotation measurements about multiple arbitrary axes within the same experimental setup. We present results for area-enclosing interferometers in both horizontal and vertical planes, demonstrating that the interferometer contrast remains comparable across orthogonal orientations of the enclosed area vectors.

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Saurabh Pandey, Ceren Uzun, Katarzyna A. Krzyzanowska, Malcolm G. Boshier. 2025-04-29. Multi-loop and Multi-axis Atomtronic Sagnac Interferometry. https://arxiv.org/abs/2504.20345

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