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High-Precision Quantum-Enhanced Gravimetry with a Bose-Einstein Condensate

Szigeti, Stuart; Nolan, Samuel P.; Close, John; Haine, Simon

Description

We show that the inherently large interatomic interactions of a Bose-Einstein condensate (BEC) can enhance the sensitivity of a high precision cold-atom gravimeter beyond the shot-noise limit (SNL). Through detailed numerical simulation, we demonstrate that our scheme produces spin-squeezed states with variances up to 14 dB below the SNL, and that absolute gravimetry measurement sensitivities between two and five times below the SNL are achievable with BECs between 104 and 106 in atom number....[Show more]

dc.contributor.authorSzigeti, Stuart
dc.contributor.authorNolan, Samuel P.
dc.contributor.authorClose, John
dc.contributor.authorHaine, Simon
dc.date.accessioned2022-07-29T02:05:51Z
dc.date.available2022-07-29T02:05:51Z
dc.identifier.issn0031-9007
dc.identifier.urihttp://hdl.handle.net/1885/270036
dc.description.abstractWe show that the inherently large interatomic interactions of a Bose-Einstein condensate (BEC) can enhance the sensitivity of a high precision cold-atom gravimeter beyond the shot-noise limit (SNL). Through detailed numerical simulation, we demonstrate that our scheme produces spin-squeezed states with variances up to 14 dB below the SNL, and that absolute gravimetry measurement sensitivities between two and five times below the SNL are achievable with BECs between 104 and 106 in atom number. Our scheme is robust to phase diffusion, imperfect atom counting, and shot-to-shot variations in atom number and laser intensity. Our proposal is immediately achievable in current laboratories, since it needs only a small modification to existing state-of-the-art experiments and does not require additional guiding potentials or optical cavities.
dc.description.sponsorshipThis project was partially funded by a Defence Science and Technology Group Competitive Evaluation Research Agreement, Project MyIP: 7333. S. P. N. acknowledges funding from the H2020 QuantERA ERA-NET Cofund in Quantum Technologies, project CEBBEC. This research was undertaken with the assistance of resources and services from the National Computational Infrastructure (NCI), which is supported by the Australian Government.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherAmerican Physical Society
dc.rights© 2020 American Physical Society
dc.sourcePhysical Review Letters
dc.titleHigh-Precision Quantum-Enhanced Gravimetry with a Bose-Einstein Condensate
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume125
dc.date.issued2020
local.identifier.absfor510801 - Degenerate quantum gases and atom optics
local.identifier.ariespublicationa383154xPUB15098
local.publisher.urlhttps://journals.aps.org/
local.type.statusPublished Version
local.contributor.affiliationSzigeti, Stuart, College of Science, ANU
local.contributor.affiliationNolan, Samuel P., QSTAR
local.contributor.affiliationClose, John, College of Science, ANU
local.contributor.affiliationHaine, Simon, College of Science, ANU
dc.relationhttp://purl.org/au-research/grants/arc/DE200100495
local.bibliographicCitation.issue10
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage8
local.identifier.doi10.1103/PhysRevLett.125.100402
dc.date.updated2021-08-01T08:24:30Z
local.identifier.scopusID2-s2.0-85091469854
dcterms.accessRightsOpen Access
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/13640/..."author can archive the publisher's version/PDF" from SHERPA/RoMEO site as at 29/07/2022
CollectionsANU Research Publications

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