Hafele and Keating on a chip: Sagnac interferometry with a single clock

Johnson, Jamie; Foxon, Bethany; Atkocius, Vilius; Gentile, Fabio; Jammi, Sindhu; Poulios, Konstantinos; Fernholz, Thomas

Abstract

We describe our progress in the development of an atom based rotation sensor, which employs state-dependent trapping potentials to transport ultracold atoms along a closed path and perform Sagnac interferometry. Whilst guided atom interferometers are sought after to build miniaturized devices that overcome size restrictions from free-falling atoms, fully trapped interferometers also remove free-propagation along an atomic waveguide. This provides additional control of motion, e.g. removing wave-packet dispersion and enabling operation that remains independent of external acceleration. Our experimental scheme relies on radio-frequency and microwave-fields, which are partly generated via atom-chip technology, providing a step towards implementing a small, robust, and eventually portable atomic-gyroscope.

Citation

Johnson, J., Foxon, B., Atkocius, V., Gentile, F., Jammi, S., Poulios, K., & Fernholz, T. (2020, February). Hafele and Keating on a chip: Sagnac interferometry with a single clock. Presented at Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II, San Francisco, United States

• Presentation Conference Type: Edited Proceedings
• Conference Name: Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
• Start Date: Feb 1, 2020
• End Date: Feb 6, 2020
• Acceptance Date: Jan 10, 2020
• Online Publication Date: Feb 25, 2020
• Publication Date: Feb 25, 2020
• Deposit Date: Mar 2, 2020
• Publicly Available Date: Mar 5, 2020
• Publisher: Society of Photo-optical Instrumentation Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 11296
• Article Number: 1129631
• Series Title: SPIE - International Society for Optical Engineering. Proceedings
• Series ISSN: 1996-756X
• Book Title: Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
• ISBN: 9781510633551
• DOI: https://doi.org/10.1117/12.2552686
• Keywords: Atomic sensors, interferometry, inertial sensing, Sagnac interferometer, ring-shaped atom traps, radio-frequency dressed potentials
• Public URL: https://nottingham-repository.worktribe.com/output/4050540
• Publisher URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11296/2552686/Hafele-and-Keating-on-a-chip--Sagnac-interferometry-with/10.1117/12.2552686.short?SSO=1