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Proceedings Paper

Hafele and Keating on a chip: Sagnac interferometry with a single clock
Author(s): Jamie Johnson; Bethany Foxon; Vilius Atkocius; Fabio Gentile; Sindhu Jammi; Konstantinos Poulios; Thomas Fernholz
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Paper 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.

Paper Details

Date Published: 25 February 2020
PDF: 14 pages
Proc. SPIE 11296, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II, 1129631 (25 February 2020);
Show Author Affiliations
Jamie Johnson, The Univ. of Nottingham (United Kingdom)
Bethany Foxon, The Univ. of Nottingham (United Kingdom)
Vilius Atkocius, The Univ. of Nottingham (United Kingdom)
Fabio Gentile, The Univ. of Nottingham (United Kingdom)
Sindhu Jammi, The Univ. of Nottingham (United Kingdom)
Konstantinos Poulios, The Univ. of Nottingham (United Kingdom)
Thomas Fernholz, The Univ. of Nottingham (United Kingdom)


Published in SPIE Proceedings Vol. 11296:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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