Skip to main content

Research Repository

Advanced Search

Sagnac interferometry with a single atomic clock

Stevenson, Robin; Hush, Michael R.; Bishop, Thomas; Lesanovsky, Igor; Fernholz, Thomas


Robin Stevenson

Michael R. Hush

Thomas Bishop


The Sagnac effect enables interferometric measurements of rotation with high precision. Using matter waves instead of light promises resolution enhancement by orders of magnitude that scales with particle mass. So far, the paradigm for matter wave Sagnac interferometry relies on DeBroglie waves and thus on free propagation of atoms either in free fall or within waveguides. However, the Sagnac effect can be expressed as a propertime difference experienced by two observers moving in opposite directions along closed paths and has indeed been measured with atomic clocks flown around Earth. Inspired by this, we investigate an interferometer comprised of a single atomic clock. The Sagnac effect manifests as a phase shift between trapped atoms in different internal states after transportation along closed paths in opposite directions, without any free propagation. With analytic models, we quantify limitations of the scheme arising from atomic dynamics and finite temperature. Furthermore, we suggest an implementation with previously demonstrated technology.

Journal Article Type Article
Publication Date Oct 13, 2015
Journal Physical Review Letters
Print ISSN 0031-9007
Electronic ISSN 0031-9007
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 115
Issue 16
APA6 Citation Stevenson, R., Hush, M. R., Bishop, T., Lesanovsky, I., & Fernholz, T. (2015). Sagnac interferometry with a single atomic clock. Physical Review Letters, 115(16),
Publisher URL
Copyright Statement Copyright information regarding this work can be found at the following address:
Additional Information Copyright 2015 American Physical Society.


single_clock_sagnac_repository.pdf (1.1 Mb)

Copyright Statement
Copyright information regarding this work can be found at the following address:

You might also like

Downloadable Citations