Work

Multiloop and multiaxis atomtronic Sagnac interferometry

Year: 2026

Type: article

Abstract: We report the experimental realization of a large-area and multiaxis atomtronic interferometer in an optical waveguide for rotation sensing. A large enclosed area is achieved through multiloop 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.

Source: Physical Review Research

DOI: 10.1103/xqqg-w58l

Authors: Saurabh Pandey, Ceren Uzun, Katarzyna A. Krzyzanowska, Malcolm G. Boshier

Institution: Los Alamos National Laboratory

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,625

Funders: Office of Naval Research, Laboratory Directed Research and Development, Los Alamos National Laboratory