Optimizing beam-splitter pulses for atom interferometry: a geometric approach
Optimizing beam-splitter pulses for atom interferometry: a geometric approach
We present a methodology for the design of optimal Raman beam-splitter pulses suitable for cold atom inertial sensors. The methodology, based on time-dependent perturbation theory, links optimal control and the sensitivity function formalism in the Bloch sphere picture, thus providing a geometric interpretation of the optimization problem. Optimized pulse waveforms are found to be more resilient than conventional beam-splitter pulses and ensure a near-flat superposition phase for a range of detunings approaching the Rabi frequency. As a practical application, we simulated the performance of an optimized Mach-Zehnder interferometer in terms of scale-factor error and bias induced by interpulse laser intensity variations. Our findings reveal enhancements compared to conventional interferometers operating with constant-power beam-splitter pulses.
atom interferometry, atomic and molecular physics, optimal control, quantum technology
Dedes, Nikolaos
aa6b8f4d-bd3a-4b1c-834d-14126ddba38f
Saywell, Jack
bdee14ca-2df7-495b-8c38-91f539c6b7fd
Carey, Max
c2b2911d-e3a9-4537-b16e-9bbfd3b68c6c
Kuprov, Ilya
bb07f28a-5038-4524-8146-e3fc8344c065
Freegarde, Tim
01a5f53b-d406-44fb-a166-d8da9128ea7d
27 November 2023
Dedes, Nikolaos
aa6b8f4d-bd3a-4b1c-834d-14126ddba38f
Saywell, Jack
bdee14ca-2df7-495b-8c38-91f539c6b7fd
Carey, Max
c2b2911d-e3a9-4537-b16e-9bbfd3b68c6c
Kuprov, Ilya
bb07f28a-5038-4524-8146-e3fc8344c065
Freegarde, Tim
01a5f53b-d406-44fb-a166-d8da9128ea7d
Dedes, Nikolaos, Saywell, Jack, Carey, Max, Kuprov, Ilya and Freegarde, Tim
(2023)
Optimizing beam-splitter pulses for atom interferometry: a geometric approach.
Physical Review A, 108 (5), [053319].
(doi:10.1103/PhysRevA.108.053319).
Abstract
We present a methodology for the design of optimal Raman beam-splitter pulses suitable for cold atom inertial sensors. The methodology, based on time-dependent perturbation theory, links optimal control and the sensitivity function formalism in the Bloch sphere picture, thus providing a geometric interpretation of the optimization problem. Optimized pulse waveforms are found to be more resilient than conventional beam-splitter pulses and ensure a near-flat superposition phase for a range of detunings approaching the Rabi frequency. As a practical application, we simulated the performance of an optimized Mach-Zehnder interferometer in terms of scale-factor error and bias induced by interpulse laser intensity variations. Our findings reveal enhancements compared to conventional interferometers operating with constant-power beam-splitter pulses.
Text
PhysRevA.108.053319
- Version of Record
More information
Accepted/In Press date: 6 November 2023
Published date: 27 November 2023
Additional Information:
Funding Information:
The authors gratefully acknowledge funding from the UK Engineering and Physical Sciences Research Council and Thales R&T (UK) under iCASE Award No. EP/T517604/1.
Publisher Copyright:
© 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Keywords:
atom interferometry, atomic and molecular physics, optimal control, quantum technology
Identifiers
Local EPrints ID: 482853
URI: http://eprints.soton.ac.uk/id/eprint/482853
ISSN: 1050-2947
PURE UUID: 194d7420-cbd9-4815-8ff9-0c5cc30a1e23
Catalogue record
Date deposited: 13 Oct 2023 16:51
Last modified: 18 Mar 2024 03:22
Export record
Altmetrics
Contributors
Author:
Jack Saywell
Author:
Max Carey
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics