Observation of Elastic Doublon Decay in the Fermi-Hubbard Model
We investigate the decay of highly excited states of ultracold fermions in a three-dimensional optical lattice. Starting from a repulsive Fermi-Hubbard system near half filling, we generate additional doubly occupied sites (doublons) by lattice modulation. The subsequent relaxation back to thermal e...
Gespeichert in:
| Veröffentlicht in: | arXiv.org 2010-03 |
|---|---|
| Hauptverfasser: | , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | arXiv.org |
| container_volume | |
| creator | Strohmaier, Niels Greif, Daniel Jördens, Robert Tarruell, Leticia Moritz, Henning Esslinger, Tilman Sensarma, Rajdeep Pekker, David Altman, Ehud Demler, Eugene |
| description | We investigate the decay of highly excited states of ultracold fermions in a three-dimensional optical lattice. Starting from a repulsive Fermi-Hubbard system near half filling, we generate additional doubly occupied sites (doublons) by lattice modulation. The subsequent relaxation back to thermal equilibrium is monitored over time. The measured doublon lifetime covers two orders of magnitude. In units of the tunneling time h/J it is found to depend exponentially on the ratio of on-site interaction energy U to kinetic energy J. We argue that the dominant mechanism for the relaxation is a high order scattering process involving several single fermions as scattering partners. A many-body calculation is carried out using diagrammatic methods, yielding good agreement with the data. |
| doi_str_mv | 10.48550/arxiv.0905.2963 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_arxiv</sourceid><recordid>TN_cdi_arxiv_primary_0905_2963</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2087228627</sourcerecordid><originalsourceid>FETCH-LOGICAL-a517-94ff2dfc208d21b482886c46950ff60876743195c6ce286b6dcf962ae9d5a9e13</originalsourceid><addsrcrecordid>eNotj7trwzAYxEWh0JBm71QEne1Knx6WplLyLKRkyW5kPaiDY6WyHZr_vk7T6eA47u6H0BMlOVdCkFeTfupzTjQROWjJ7tAEGKOZ4gAPaNZ1B0IIyAKEYBP0tqs6n86mr2OLY8DLxnR9bfEiDlUzWgtvzQXXLe6_PF75dKyzzVBVJjn8GZ1vHtF9ME3nZ_86RfvVcj_fZNvd-mP-vs2MoEWmeQjgggWiHNCKK1BKWi61ICFIogpZcEa1sNJ6ULKSzgYtwXjthNGesil6vtX-wZWnVB9NupRXyPIKOQZeboFTit-D7_ryEIfUjpfKcbSAsRUK9gs2MFLW</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2087228627</pqid></control><display><type>article</type><title>Observation of Elastic Doublon Decay in the Fermi-Hubbard Model</title><source>arXiv.org</source><source>Free E- Journals</source><creator>Strohmaier, Niels ; Greif, Daniel ; Jördens, Robert ; Tarruell, Leticia ; Moritz, Henning ; Esslinger, Tilman ; Sensarma, Rajdeep ; Pekker, David ; Altman, Ehud ; Demler, Eugene</creator><creatorcontrib>Strohmaier, Niels ; Greif, Daniel ; Jördens, Robert ; Tarruell, Leticia ; Moritz, Henning ; Esslinger, Tilman ; Sensarma, Rajdeep ; Pekker, David ; Altman, Ehud ; Demler, Eugene</creatorcontrib><description>We investigate the decay of highly excited states of ultracold fermions in a three-dimensional optical lattice. Starting from a repulsive Fermi-Hubbard system near half filling, we generate additional doubly occupied sites (doublons) by lattice modulation. The subsequent relaxation back to thermal equilibrium is monitored over time. The measured doublon lifetime covers two orders of magnitude. In units of the tunneling time h/J it is found to depend exponentially on the ratio of on-site interaction energy U to kinetic energy J. We argue that the dominant mechanism for the relaxation is a high order scattering process involving several single fermions as scattering partners. A many-body calculation is carried out using diagrammatic methods, yielding good agreement with the data.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.0905.2963</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Decay ; Fermions ; Kinetic energy ; Many body interactions ; Optical lattices ; Physics - Other Condensed Matter ; Physics - Quantum Gases ; Physics - Strongly Correlated Electrons ; Scattering</subject><ispartof>arXiv.org, 2010-03</ispartof><rights>2010. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,784,885,27925</link.rule.ids><backlink>$$Uhttps://doi.org/10.1103/PhysRevLett.104.080401$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.48550/arXiv.0905.2963$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Strohmaier, Niels</creatorcontrib><creatorcontrib>Greif, Daniel</creatorcontrib><creatorcontrib>Jördens, Robert</creatorcontrib><creatorcontrib>Tarruell, Leticia</creatorcontrib><creatorcontrib>Moritz, Henning</creatorcontrib><creatorcontrib>Esslinger, Tilman</creatorcontrib><creatorcontrib>Sensarma, Rajdeep</creatorcontrib><creatorcontrib>Pekker, David</creatorcontrib><creatorcontrib>Altman, Ehud</creatorcontrib><creatorcontrib>Demler, Eugene</creatorcontrib><title>Observation of Elastic Doublon Decay in the Fermi-Hubbard Model</title><title>arXiv.org</title><description>We investigate the decay of highly excited states of ultracold fermions in a three-dimensional optical lattice. Starting from a repulsive Fermi-Hubbard system near half filling, we generate additional doubly occupied sites (doublons) by lattice modulation. The subsequent relaxation back to thermal equilibrium is monitored over time. The measured doublon lifetime covers two orders of magnitude. In units of the tunneling time h/J it is found to depend exponentially on the ratio of on-site interaction energy U to kinetic energy J. We argue that the dominant mechanism for the relaxation is a high order scattering process involving several single fermions as scattering partners. A many-body calculation is carried out using diagrammatic methods, yielding good agreement with the data.</description><subject>Decay</subject><subject>Fermions</subject><subject>Kinetic energy</subject><subject>Many body interactions</subject><subject>Optical lattices</subject><subject>Physics - Other Condensed Matter</subject><subject>Physics - Quantum Gases</subject><subject>Physics - Strongly Correlated Electrons</subject><subject>Scattering</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GOX</sourceid><recordid>eNotj7trwzAYxEWh0JBm71QEne1Knx6WplLyLKRkyW5kPaiDY6WyHZr_vk7T6eA47u6H0BMlOVdCkFeTfupzTjQROWjJ7tAEGKOZ4gAPaNZ1B0IIyAKEYBP0tqs6n86mr2OLY8DLxnR9bfEiDlUzWgtvzQXXLe6_PF75dKyzzVBVJjn8GZ1vHtF9ME3nZ_86RfvVcj_fZNvd-mP-vs2MoEWmeQjgggWiHNCKK1BKWi61ICFIogpZcEa1sNJ6ULKSzgYtwXjthNGesil6vtX-wZWnVB9NupRXyPIKOQZeboFTit-D7_ryEIfUjpfKcbSAsRUK9gs2MFLW</recordid><startdate>20100329</startdate><enddate>20100329</enddate><creator>Strohmaier, Niels</creator><creator>Greif, Daniel</creator><creator>Jördens, Robert</creator><creator>Tarruell, Leticia</creator><creator>Moritz, Henning</creator><creator>Esslinger, Tilman</creator><creator>Sensarma, Rajdeep</creator><creator>Pekker, David</creator><creator>Altman, Ehud</creator><creator>Demler, Eugene</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20100329</creationdate><title>Observation of Elastic Doublon Decay in the Fermi-Hubbard Model</title><author>Strohmaier, Niels ; Greif, Daniel ; Jördens, Robert ; Tarruell, Leticia ; Moritz, Henning ; Esslinger, Tilman ; Sensarma, Rajdeep ; Pekker, David ; Altman, Ehud ; Demler, Eugene</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a517-94ff2dfc208d21b482886c46950ff60876743195c6ce286b6dcf962ae9d5a9e13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Decay</topic><topic>Fermions</topic><topic>Kinetic energy</topic><topic>Many body interactions</topic><topic>Optical lattices</topic><topic>Physics - Other Condensed Matter</topic><topic>Physics - Quantum Gases</topic><topic>Physics - Strongly Correlated Electrons</topic><topic>Scattering</topic><toplevel>online_resources</toplevel><creatorcontrib>Strohmaier, Niels</creatorcontrib><creatorcontrib>Greif, Daniel</creatorcontrib><creatorcontrib>Jördens, Robert</creatorcontrib><creatorcontrib>Tarruell, Leticia</creatorcontrib><creatorcontrib>Moritz, Henning</creatorcontrib><creatorcontrib>Esslinger, Tilman</creatorcontrib><creatorcontrib>Sensarma, Rajdeep</creatorcontrib><creatorcontrib>Pekker, David</creatorcontrib><creatorcontrib>Altman, Ehud</creatorcontrib><creatorcontrib>Demler, Eugene</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Strohmaier, Niels</au><au>Greif, Daniel</au><au>Jördens, Robert</au><au>Tarruell, Leticia</au><au>Moritz, Henning</au><au>Esslinger, Tilman</au><au>Sensarma, Rajdeep</au><au>Pekker, David</au><au>Altman, Ehud</au><au>Demler, Eugene</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of Elastic Doublon Decay in the Fermi-Hubbard Model</atitle><jtitle>arXiv.org</jtitle><date>2010-03-29</date><risdate>2010</risdate><eissn>2331-8422</eissn><abstract>We investigate the decay of highly excited states of ultracold fermions in a three-dimensional optical lattice. Starting from a repulsive Fermi-Hubbard system near half filling, we generate additional doubly occupied sites (doublons) by lattice modulation. The subsequent relaxation back to thermal equilibrium is monitored over time. The measured doublon lifetime covers two orders of magnitude. In units of the tunneling time h/J it is found to depend exponentially on the ratio of on-site interaction energy U to kinetic energy J. We argue that the dominant mechanism for the relaxation is a high order scattering process involving several single fermions as scattering partners. A many-body calculation is carried out using diagrammatic methods, yielding good agreement with the data.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.0905.2963</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2010-03 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_arxiv_primary_0905_2963 |
| source | arXiv.org; Free E- Journals |
| subjects | Decay Fermions Kinetic energy Many body interactions Optical lattices Physics - Other Condensed Matter Physics - Quantum Gases Physics - Strongly Correlated Electrons Scattering |
| title | Observation of Elastic Doublon Decay in the Fermi-Hubbard Model |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-06T13%3A39%3A37IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_arxiv&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Observation%20of%20Elastic%20Doublon%20Decay%20in%20the%20Fermi-Hubbard%20Model&rft.jtitle=arXiv.org&rft.au=Strohmaier,%20Niels&rft.date=2010-03-29&rft.eissn=2331-8422&rft_id=info:doi/10.48550/arxiv.0905.2963&rft_dat=%3Cproquest_arxiv%3E2087228627%3C/proquest_arxiv%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2087228627&rft_id=info:pmid/&rfr_iscdi=true |