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Optically trapped atom interferometry using the clock transition of large rubidium-87 bose-einstein condensates

McDonald, Gordon; Altin, Paul; Doering, Daniel; Debs, John; Barter, Thomas; Close, John; Robins, Nicholas; Haine, S; Hanna, T M; Anderson, R P

Description

We present a Ramsey-type atom interferometer operating with an optically trapped sample of 106 Bose-condensed 87Rb atoms. We investigate this interferometer experimentally and theoretically with an eye to the construction of future high precision atomic sensors. Our results indicate that, with further experimental refinements, it will be possible to produce and measure the output of a sub-shot-noise limited, large atom number BEC-based interferometer. The optical trap (shown in Figure 1 (c))...[Show more]

dc.contributor.authorMcDonald, Gordon
dc.contributor.authorAltin, Paul
dc.contributor.authorDoering, Daniel
dc.contributor.authorDebs, John
dc.contributor.authorBarter, Thomas
dc.contributor.authorClose, John
dc.contributor.authorRobins, Nicholas
dc.contributor.authorHaine, S
dc.contributor.authorHanna, T M
dc.contributor.authorAnderson, R P
dc.coverage.spatialSydney Australia
dc.date.accessioned2015-12-07T22:30:55Z
dc.date.createdAugust 28 - September 1 2011
dc.identifier.isbn9780977565771
dc.identifier.urihttp://hdl.handle.net/1885/22539
dc.description.abstractWe present a Ramsey-type atom interferometer operating with an optically trapped sample of 106 Bose-condensed 87Rb atoms. We investigate this interferometer experimentally and theoretically with an eye to the construction of future high precision atomic sensors. Our results indicate that, with further experimental refinements, it will be possible to produce and measure the output of a sub-shot-noise limited, large atom number BEC-based interferometer. The optical trap (shown in Figure 1 (c)) allows us to couple the |F = 1,mF = 0) → |F = 2,mF = 0) clock states using a single photon 6.8 GHz microwave transition, while state selective readout is achieved with absorption imaging. We analyse the process of absorption imaging and show that it is possible to observe atom number variance directly, with a signal-to-noise ratio ten times better than the atomic projection noise limit on 106 condensate atoms. We discuss the technical and fundamental noise sources that limit our current system, and present theoretical and experimental results on interferometer contrast, de-phasing and miscibility.
dc.publisherIEEE
dc.relation.ispartofseriesConference on Lasers and Electro-Optics/Pacific Rim (CLEOPR 2011)
dc.sourceProceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011
dc.subjectKeywords: Absorption imaging; Atom interferometer; Bose-Einstein condensates; Clock transition; Fundamental noise; Microwave transitions; Single photons; State selective; Bose-Einstein condensation; Clocks; Interferometers; Rubidium; Atoms
dc.titleOptically trapped atom interferometry using the clock transition of large rubidium-87 bose-einstein condensates
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2011
local.identifier.absfor020601 - Degenerate Quantum Gases and Atom Optics
local.identifier.ariespublicationu4224061xPUB22
local.identifier.ariespublicationU3488905xPUB3324
local.type.statusPublished Version
local.contributor.affiliationMcDonald, Gordon, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationAltin, Paul, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationDoering, Daniel, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationDebs, John, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBarter, Thomas, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationClose, John, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationRobins, Nicholas, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationHaine, S, University of Queensland
local.contributor.affiliationHanna, T M, University of Maryland
local.contributor.affiliationAnderson, R P, Monash University
local.bibliographicCitation.startpage116
local.bibliographicCitation.lastpage118
dc.date.updated2020-12-13T07:24:30Z
local.identifier.scopusID2-s2.0-84893579843
CollectionsANU Research Publications

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