apajahyrkasmanninen.flat.bands.pra2010.pdf
Publisher's PDF

Flat bands, Dirac cones, and atom dynamics in an optical lattice

Abstract
We study atoms trapped with a harmonic confinement in an optical lattice characterized by a flat band and Dirac cones. We show that such an optical lattice can be constructed which can be accurately described with the tight-binding or Hubbard models. In the case of fermions the release of the harmonic confinement removes fast atoms occupying the Dirac cones while those occupying the flat band remain immobile. Using exact diagonalization and dynamics we demonstrate that a similar strong occupation of the flat band does not happen in the bosonic case and furthermore that the mean-field model is not capable of describing the dynamics of the boson cloud.
Main Authors
Apaja, Vesa Hyrkäs, Markku Manninen, Matti
Format
Articles Research article
Published
2010
Series
Physical Review A
Subjects
kvanttikaasut
optiset hilat
quantum gases
optical lattices
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/20230668
Publisher
American Physical Society
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201705242479Use this for linking
Review status
Peer reviewed
ISSN
1050-2947
DOI
https://doi.org/10.1103/PhysRevA.82.041402
Language
English
Published in
Physical Review A
Citation
License
Open Access
Copyright© 2010 The American Physical Society. Published in this repository with the kind permission of the publisher.

Share

_version_ 1824577764941889536
accesslevel_txtF openAccess
author Apaja, Vesa Hyrkäs, Markku Manninen, Matti
author_facet Apaja, Vesa Hyrkäs, Markku Manninen, Matti
converis_txtF yes
departments_txtF_mv Fysiikan laitos Department of Physics
description We study atoms trapped with a harmonic confinement in an optical lattice characterized by a flat band and Dirac cones. We show that such an optical lattice can be constructed which can be accurately described with the tight-binding or Hubbard models. In the case of fermions the release of the harmonic confinement removes fast atoms occupying the Dirac cones while those occupying the flat band remain immobile. Using exact diagonalization and dynamics we demonstrate that a similar strong occupation of the flat band does not happen in the bosonic case and furthermore that the mean-field model is not capable of describing the dynamics of the boson cloud.
digitoitu_txtF no
file_count_txtF 1
files_txt [{"restricted": "no", "bundleName": "THUMBNAIL", "format": "JPEG", "mimeType": "image/jpeg", "name": "apajahyrkasmanninen.flat.bands.pra2010.pdf.jpg", "description": "Generated Thumbnail", "retrieveLink": "/rest/bitstreams/2c5b1993-2408-4de9-be49-9852a7d401b8/retrieve"}, {"restricted": "no", "bundleName": "ORIGINAL", "format": "Adobe PDF", "mimeType": "application/pdf", "name": "apajahyrkasmanninen.flat.bands.pra2010.pdf", "description": "Publisher's PDF", "retrieveLink": "/rest/bitstreams/c0bf59d6-5fe7-49e1-a2eb-9ba061a2b6c0/retrieve"}, {"restricted": "no", "bundleName": "LICENSE", "format": "License", "mimeType": "text/plain", "name": "license.txt", "description": null, "retrieveLink": "/rest/bitstreams/0c3ca177-b150-44eb-af35-0b121a72a239/retrieve"}, {"restricted": "no", "bundleName": "LICENSE", "format": "Adobe PDF", "mimeType": "application/pdf", "name": "Physical review A_LUPA.pdf", "description": "", "retrieveLink": "/rest/bitstreams/6bc32e66-e090-430e-9e3e-2593cf0c0751/retrieve"}, {"restricted": "no", "bundleName": "TEXT", "format": "Text", "mimeType": "text/plain", "name": "apajahyrkasmanninen.flat.bands.pra2010.pdf.txt", "description": "Extracted text", "retrieveLink": "/rest/bitstreams/8ea2d957-3aa4-46eb-8650-95a03b749a1e/retrieve"}]
format 0/Artikkelit/ 1/Artikkelit/research article/
fullrecord
key : dc.contributor.author
value : Apaja, Vesa
language :
element : contributor
qualifier : author
schema : dc
key : dc.contributor.author
value : Hyrkäs, Markku
language :
element : contributor
qualifier : author
schema : dc
key : dc.contributor.author
value : Manninen, Matti
language :
element : contributor
qualifier : author
schema : dc
key : dc.date.accessioned
value : 2017-05-30T09:59:15Z
language :
element : date
qualifier : accessioned
schema : dc
key : dc.date.available
value : 2017-05-30T09:59:15Z
language :
element : date
qualifier : available
schema : dc
key : dc.date.issued
value : 2010
language :
element : date
qualifier : issued
schema : dc
key : dc.identifier.citation
value : Apaja, V., Hyrkäs, M., & Manninen, M. (2010). Flat bands, Dirac cones, and atom dynamics in an optical lattice. Physical Review A, 82(4), 41402. https://doi.org/10.1103/PhysRevA.82.041402
language :
element : identifier
qualifier : citation
schema : dc
key : dc.identifier.other
value : jyu-pub.20230668
language :
element : identifier
qualifier : other
schema : dc
key : dc.identifier.uri
value : https://jyx.jyu.fi/handle/123456789/54176
language :
element : identifier
qualifier : uri
schema : dc
key : dc.description.abstract
value : We study atoms trapped with a harmonic confinement in an optical lattice characterized by a flat band and Dirac cones. We show that such an optical lattice can be constructed which can be accurately described with the tight-binding or Hubbard models. In the case of fermions the release of the harmonic confinement removes fast atoms occupying the Dirac cones while those occupying the flat band remain immobile. Using exact diagonalization and dynamics we demonstrate that a similar strong occupation of the flat band does not happen in the bosonic case and furthermore that the mean-field model is not capable of describing the dynamics of the boson cloud.
language :
element : description
qualifier : abstract
schema : dc
key : dc.language.iso
value : eng
language :
element : language
qualifier : iso
schema : dc
key : dc.publisher
value : American Physical Society
language :
element : publisher
qualifier :
schema : dc
key : dc.relation.ispartofseries
value : Physical Review A
language :
element : relation
qualifier : ispartofseries
schema : dc
key : dc.subject.other
value : kvanttikaasut
language :
element : subject
qualifier : other
schema : dc
key : dc.subject.other
value : optiset hilat
language :
element : subject
qualifier : other
schema : dc
key : dc.subject.other
value : quantum gases
language :
element : subject
qualifier : other
schema : dc
key : dc.subject.other
value : optical lattices
language :
element : subject
qualifier : other
schema : dc
key : dc.title
value : Flat bands, Dirac cones, and atom dynamics in an optical lattice
language :
element : title
qualifier :
schema : dc
key : dc.type
value : research article
language :
element : type
qualifier :
schema : dc
key : dc.identifier.urn
value : URN:NBN:fi:jyu-201705242479
language :
element : identifier
qualifier : urn
schema : dc
key : dc.contributor.department
value : Fysiikan laitos
language : fi
element : contributor
qualifier : department
schema : dc
key : dc.contributor.department
value : Department of Physics
language : en
element : contributor
qualifier : department
schema : dc
key : dc.type.uri
value : http://purl.org/eprint/type/JournalArticle
language :
element : type
qualifier : uri
schema : dc
key : dc.date.updated
value : 2017-05-24T09:15:03Z
language :
element : date
qualifier : updated
schema : dc
key : dc.type.coar
value : http://purl.org/coar/resource_type/c_2df8fbb1
language :
element : type
qualifier : coar
schema : dc
key : dc.description.reviewstatus
value : peerReviewed
language :
element : description
qualifier : reviewstatus
schema : dc
key : dc.format.pagerange
value : 41402
language :
element : format
qualifier : pagerange
schema : dc
key : dc.relation.issn
value : 1050-2947
language :
element : relation
qualifier : issn
schema : dc
key : dc.relation.numberinseries
value : 4
language :
element : relation
qualifier : numberinseries
schema : dc
key : dc.relation.volume
value : 82
language :
element : relation
qualifier : volume
schema : dc
key : dc.type.version
value : publishedVersion
language :
element : type
qualifier : version
schema : dc
key : dc.rights.copyright
value : © 2010 The American Physical Society. Published in this repository with the kind permission of the publisher.
language :
element : rights
qualifier : copyright
schema : dc
key : dc.rights.accesslevel
value : openAccess
language : fi
element : rights
qualifier : accesslevel
schema : dc
key : dc.type.publication
value : article
language :
element : type
qualifier : publication
schema : dc
key : dc.relation.doi
value : 10.1103/PhysRevA.82.041402
language :
element : relation
qualifier : doi
schema : dc
key : dc.type.okm
value : A1
language :
element : type
qualifier : okm
schema : dc
files : [{"restricted":"no","bundleName":"THUMBNAIL","format":"JPEG","mimeType":"image\/jpeg","name":"apajahyrkasmanninen.flat.bands.pra2010.pdf.jpg","description":"Generated Thumbnail","retrieveLink":"\/rest\/bitstreams\/2c5b1993-2408-4de9-be49-9852a7d401b8\/retrieve"},{"restricted":"no","bundleName":"ORIGINAL","format":"Adobe PDF","mimeType":"application\/pdf","name":"apajahyrkasmanninen.flat.bands.pra2010.pdf","description":"Publisher's PDF","retrieveLink":"\/rest\/bitstreams\/c0bf59d6-5fe7-49e1-a2eb-9ba061a2b6c0\/retrieve"},{"restricted":"no","bundleName":"LICENSE","format":"License","mimeType":"text\/plain","name":"license.txt","description":null,"retrieveLink":"\/rest\/bitstreams\/0c3ca177-b150-44eb-af35-0b121a72a239\/retrieve"},{"restricted":"no","bundleName":"LICENSE","format":"Adobe PDF","mimeType":"application\/pdf","name":"Physical review A_LUPA.pdf","description":"","retrieveLink":"\/rest\/bitstreams\/6bc32e66-e090-430e-9e3e-2593cf0c0751\/retrieve"},{"restricted":"no","bundleName":"TEXT","format":"Text","mimeType":"text\/plain","name":"apajahyrkasmanninen.flat.bands.pra2010.pdf.txt","description":"Extracted text","retrieveLink":"\/rest\/bitstreams\/8ea2d957-3aa4-46eb-8650-95a03b749a1e\/retrieve"}]
id jyx_123456789_54176
isbn_txtF no
ispartofseries_txtF_mv Physical Review A
issn 1050-2947
issued_txtF 2010
language_txtF_mv eng
mimetype_txtF_mv application/pdf
okm_txtF A1
online_urls_str_mv URN:NBN:fi:jyu-201705242479
publishDate 2010
publisher_txtF_mv American Physical Society
reviewstatus_txtF peerReviewed
series Physical Review A
spellingShingle Flat bands, Dirac cones, and atom dynamics in an optical lattice Apaja, Vesa Hyrkäs, Markku Manninen, Matti kvanttikaasut optiset hilat quantum gases optical lattices Physical Review A
subject_count_txtF 4
thumbnail https://jyx.jyu.fi/bitstreams/2c5b1993-2408-4de9-be49-9852a7d401b8/download.jpg?sequence=99
title Flat bands, Dirac cones, and atom dynamics in an optical lattice
title_full Flat bands, Dirac cones, and atom dynamics in an optical lattice
title_fullStr Flat bands, Dirac cones, and atom dynamics in an optical lattice
title_full_unstemmed Flat bands, Dirac cones, and atom dynamics in an optical lattice
title_short Flat bands, Dirac cones, and atom dynamics in an optical lattice
title_sort Flat bands Dirac cones and atom dynamics in an optical lattice
topic kvanttikaasut optiset hilat quantum gases optical lattices
yso_count_txtF 0

Similar Items