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.

• Journal Article Type: Conference Paper
• Conference Name: Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
• 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
• Journal: Proceedings of SPIE
• Print ISSN: 0277-786X
• Electronic ISSN: 1996-756X
• Publisher: Society of Photo-optical Instrumentation Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 11296
• 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
• Additional Information: Copyright 2020 Society of Photo?Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.