Improving cold-atom sensors with quantum entanglement: Prospects and challenges

Szigeti SS, Hosten O, Haine SA. 2021. Improving cold-atom sensors with quantum entanglement: Prospects and challenges. Applied Physics Letters. 118(14), 140501.


Journal Article | Published | English

Scopus indexed
Author
Szigeti, Stuart S.; Hosten, OnurIST Austria ; Haine, Simon A.
Department
Abstract
Quantum entanglement has been generated and verified in cold-atom experiments and used to make atom-interferometric measurements below the shot-noise limit. However, current state-of-the-art cold-atom devices exploit separable (i.e., unentangled) atomic states. This perspective piece asks the question: can entanglement usefully improve cold-atom sensors, in the sense that it gives new sensing capabilities unachievable with current state-of-the-art devices? We briefly review the state-of-the-art in precision cold-atom sensing, focusing on clocks and inertial sensors, identifying the potential benefits entanglement could bring to these devices, and the challenges that need to be overcome to realize these benefits. We survey demonstrated methods of generating metrologically useful entanglement in cold-atom systems, note their relative strengths and weaknesses, and assess their prospects for near-to-medium term quantum-enhanced cold-atom sensing.
Publishing Year
Date Published
2021-04-07
Journal Title
Applied Physics Letters
Acknowledgement
We acknowledge fruitful discussions with John Close, Chris Freier, Kyle Hardman, Joseph Hope, and Paul Wigley, and insightful suggestions made by Franck Pereira dos Santos on behalf of the Atom Interferometry and Inertial Sensors team at SYRTE. S.S.S. was supported by an Australian Research Council Discovery Early Career Researcher Award (DECRA), Project No. DE200100495. O.H. was supported by IST Austria.
Volume
118
Issue
14
Article Number
140501
ISSN
IST-REx-ID

Cite this

Szigeti SS, Hosten O, Haine SA. Improving cold-atom sensors with quantum entanglement: Prospects and challenges. Applied Physics Letters. 2021;118(14). doi:10.1063/5.0050235
Szigeti, S. S., Hosten, O., & Haine, S. A. (2021). Improving cold-atom sensors with quantum entanglement: Prospects and challenges. Applied Physics Letters. AIP Publishing. https://doi.org/10.1063/5.0050235
Szigeti, Stuart S., Onur Hosten, and Simon A. Haine. “Improving Cold-Atom Sensors with Quantum Entanglement: Prospects and Challenges.” Applied Physics Letters. AIP Publishing, 2021. https://doi.org/10.1063/5.0050235.
S. S. Szigeti, O. Hosten, and S. A. Haine, “Improving cold-atom sensors with quantum entanglement: Prospects and challenges,” Applied Physics Letters, vol. 118, no. 14. AIP Publishing, 2021.
Szigeti SS, Hosten O, Haine SA. 2021. Improving cold-atom sensors with quantum entanglement: Prospects and challenges. Applied Physics Letters. 118(14), 140501.
Szigeti, Stuart S., et al. “Improving Cold-Atom Sensors with Quantum Entanglement: Prospects and Challenges.” Applied Physics Letters, vol. 118, no. 14, 140501, AIP Publishing, 2021, doi:10.1063/5.0050235.
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