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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


© 2015 American Physical Society. © 2015 American Physical Society. 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 de Broglie waves and thus on free propagation of atoms either in free fall or within waveguides. However, the Sagnac effect can be expressed as a proper time 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.


Stevenson, R., Hush, M. R., Bishop, T., Lesanovsky, I., & Fernholz, T. (2015). Sagnac Interferometry with a Single Atomic Clock. Physical Review Letters, 115(16),

Journal Article Type Article
Acceptance Date Sep 10, 2015
Publication Date Oct 13, 2015
Deposit Date Oct 21, 2015
Publicly Available Date Oct 21, 2015
Journal Physical Review Letters
Print ISSN 0031-9007
Electronic ISSN 1079-7114
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 115
Issue 16
Article Number 163001
Keywords Atomic Physics; Quantum Physics
Public URL
Publisher URL
Copyright Statement Copyright information regarding this work can be found at the following address:
Additional Information Copyright 2015 American Physical Society.


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

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