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  Matter-wave recombiners for trapped Bose-Einstein condensates

Berrada, T., van Frank, S., Bücker, R., Schumm, T., Schaff, J.-F., Schmiedmayer, J., et al. (2016). Matter-wave recombiners for trapped Bose-Einstein condensates. Physical Review A, 93(6): 063620. doi:10.1103/PhysRevA.93.063620.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-F413-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-90C4-B
Genre: Journal Article

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PhysRevA.93.063620.pdf (Publisher version), 3MB
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PhysRevA.93.063620.pdf
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This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
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2016
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© T. Berrada et al.

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Locator:
http://dx.doi.org/10.1103/PhysRevA.93.063620 (Publisher version)
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http://arxiv.org/abs/1512.08127 (Preprint)
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 Creators:
Berrada, T.1, Author
van Frank, S.1, Author
Bücker, Robert1, 2, Author              
Schumm, T.1, Author
Schaff, J.-F.1, 3, Author
Schmiedmayer, J.1, Author
Julía-Díaz, B.4, Author
Polls, A.4, Author
Affiliations:
1Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Stadionallee 2, 1020 Vienna, Austria, ou_persistent22              
2Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938288              
3Muquans, Institut d'Optique d'Aquitaine, Rue Francois Mitterrand, 33400 Talence, France, ou_persistent22              
4Departament d'Estructura i Constituents de la Matèria and Institute de Ciències del Cosmos, Facultat de Física, Universitat de Barcelona, E-02028, Barcelona, Spain, ou_persistent22              

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 Abstract: Interferometry with trapped atomic Bose-Einstein condensates (BECs) requires the development of techniques to recombine the two paths of the interferometer and map the accumulated phase difference to a measurable atom number difference. We have implemented and compared two recombining procedures in a double-well-based BEC interferometer. The first procedure utilizes the bosonic Josephson effect and controlled tunneling of atoms through the potential barrier, similar to laser light in an optical fiber coupler. The second one relies on the interference of the reflected and transmitted parts of the BEC wave function when impinging on the potential barrier, analogous to light impinging on a half-silvered mirror. Both schemes were implemented successfully, yielding an interferometric contrast of ∼20% and 42% respectively. Building efficient matter-wave recombiners represents an important step towards the coherent manipulation of external quantum superposition states of BECs.

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Language(s): eng - English
 Dates: 2016-04-132015-12-212016-06-162016-06
 Publication Status: Published in print
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevA.93.063620
arXiv: 1512.08127
 Degree: -

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Title: Physical Review A
  Other : Phys. Rev. A
  Other : Physical Review A: Atomic, Molecular, and Optical Physics
Source Genre: Journal
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Publ. Info: New York, NY : American Physical Society
Pages: - Volume / Issue: 93 (6) Sequence Number: 063620 Start / End Page: - Identifier: ISSN: 1050-2947
CoNE: /journals/resource/954925225012_2