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Spatially-selective in situ magnetometry of ultracold atomic clouds
journal contribution
posted on 2023-06-09, 17:13 authored by Ottó Elíasson, Robert Heck, Jens Schultz Lausten, Mario Napolitano, Romain Müller, Jan Arlt, Jacob F Sherson, Mark BasonWe demonstrate novel implementations of high-precision optical magnetometers which allow for spatially-selective and spatially-resolved in situ measurements using cold atomic clouds. These are realised by using shaped dispersive probe beams combined with spatially-resolved balanced homodyne detection. Two magnetometer sequences are discussed: a vectorial magnetometer, which yields sensitivities two orders of magnitude better compared to a previous realisation and a Larmor magnetometer capable of measuring absolute magnetic fields. We characterise the dependence of single-shot precision on the size of the analysed region for the vectorial magnetometer and provide a lower bound for the measurement precision of magnetic field gradients for the Larmor magnetometer. Finally, we give an outlook on how dynamic trapping potentials combined with selective probing can be used to realise enhanced quantum simulations in quantum gas microscopes.
Funding
Meredith Hanmer: Marie Curie IEF (Angela Adreani); G1366; EUROPEAN UNION; PIEF-GA-2012-327060
History
Publication status
- Published
File Version
- Accepted version
Journal
Journal of Physics B: Atomic, Molecular and Optical PhysicsISSN
0953-4075Publisher
IOP PublishingExternal DOI
Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Experimental Particle Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2019-03-12First Open Access (FOA) Date
2020-03-01First Compliant Deposit (FCD) Date
2019-03-11Usage metrics
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